( 231 ) 
XI. Descriptions of Aculeate Hymenoptera /rom Australia. 
By Frederick Smith, late Pres. Ent. Soc. 
[Read 4th May, 1868.] 
Of the fifty-five species of Aculeate Hymenoptera de- 
scribed in this paper, not less than thirty have been re- 
ceived from Mr. H. Du Boulay, who discovered them at 
and in the neighbourhood of Champion Bay, in Western 
Australia. Amongst them, are three species of the genus 
Crabro, not one I believe having been described previous- 
ly from that country. Of the rare genus Paragia, four 
new species are added, and several fine additions are 
made to the Thynmdce. 
The pi'incipal discoveries o^ Apidce are a fine metallic 
coloured species of the genus Stenotrihis; one species of 
LitJiurgus, and six of Megachile. The last-mentioned 
genus is well represented in i\ustralia, since at least 
thirty species are known ; in all other countries where 
these leaf-cutting bees are found, so also is their parasite 
Coelioxys ; but not a single species of that genus has, to 
my knowledge, been found in Australia. Probably some 
other genus of bees is the parasite of Megachile in that 
country, though I am not acquainted with any parasitic 
bee at all likely to be so ; if Coelioxys is an Australian 
insect, it is certainly remarkable that no one should have 
hitherto captured it. 
The species not indicated as being in the National Col- 
lection are in my own cabinet. 
Fam. THYNNID.^. 
Gen. Thynnus. 
1. Tlnjnnus ocJiroeephalus . 
Male. Length 11 lines. The head, prothorax, and 
anterior legs, bright ochraceous, body and legs black. 
The antennge, tips of the mandibles, and a transverse 
band on the vertex, enclosing the steramata, black. Thorax 
punctured, the metathorax and legs with a fine short 
cinereous pubescence ; the anterior tarsi black ; wings 
sub-hyaline and ferruginous, their base brown, with the 
extreme base black, their apical margins with a broad 
TRANS. ENT. SOC. 1868. PART II. (jULY.) 
232 Mr. Frederick Smith on 
fuscous border extending to the base of the marginal 
cell. Abdomen finely punctured, and having, in certain 
lights, tints of blue ; thinly covered above with cinereous 
downy pile. 
Hab. Champion Bay. 
In the British Museum. 
I have only seen two specimens of this fine addition to 
the genus, one of which is in my own possession, presented 
to me by Mr. H. Du Boulay. 
2. Tliynnus camiiamdaris, 
Male. Length 1 inch. Black : spotted and banded 
with pale yellow markings. Head : the clypeus, a 
V-shaped mark between the antennas, the mandibles and 
orbits of the eyes interrupted at their summit, yellow ; 
the cheeks with long thin cinereous pubescence, a simi- 
lar short thin pubescence on the vertex. Thorax : an 
interrupted line on the collar, two spots beneath the 
wings, the coxse beneath, the metathorax with a reversed 
bell-shaped spot in the middle extending its entire 
length, the post-scutellum, two minute spots on the 
scutellum and a spot on the tegulae, yellow ; wings hya- 
line, nervures black. Abdomen : elongate, each seg- 
ment vsdth an interrupted fascia in the middle, the fasciee 
narrow, and slightly curved upwards at the lateral mar- 
gins j beneath, the segments have an ovate spot on each 
side, those on the second segment large and united, 
almost occupying the entire segment ; the first segment 
with a central triangular spot. 
Hab. Sydney. 
3. Thynnus ohlongus. 
Male. Length 10^ lines. Black. Head: the clypeus 
and mandibles yellow, the latter bidentate, and black at 
their apex ; a narrow red obscure line behind the eyes. 
Thorax : rugose ; the disk with a short brown pubes- 
cence ; beneath, the sides and the metathorax with a 
cinereous pubescence ; tibite and tarsi ferruginous, the 
apical joints of the latter black ; wings fulvo-hyaline, the 
nervures fuscous. Abdomen elongate, finely punctured, 
the basal margins of the segments smooth and shining. 
Aculeate Hymenoptera. 233 
the other portion with a thin covering of cinereous 
pubescence, which is more dense and glittering at the 
sides ; beneath punctured, and with a thin short cinere- 
ous pubescence. 
Hab. Melbourne. 
4. Thynnus co7ispicuus. 
Male. Length 8-9 lines. Black : with red and yellow 
mai-kings. Head: rugose; the clypeus, a spot at the 
base of the mandibles, the margin of the elevation be- 
neath which the antennae are inserted, and a narrow 
yellow line behind the eyes at the lower part of their 
orbits, yellow. Thorax : rugose, and with a thin hoary 
pubescence ; the prothorax above, and a quadrate spot 
on the mesothorax, ferruginous ; a black macula on 
each side of the prothorax, and a minute spot on the 
margin in front ; a spot on the scutellam, the post-scu- 
tellum, and two ovate spots on the metathorax, yellow ; 
the tips of the joints of the legs and of the tarsi, ferru- 
ginous ; wings hyaline, with a slight yellow tinge. 
Abdomen smooth and shining ; the first segment with a 
minute spot on each side, and the four following seg- 
ments, with an interrupted yellow fascia in the middle, 
each narrower than the preceding ; beneath, the second, 
third, and fourth segments have an interrupted white 
fascia. 
Hab. South Australia. 
In the British Museum. 
5. Thynnus inipetuosus . 
Male. Length 1 inch. Black : the abdomen with sil- 
very-white fasciae. Head as wide as the thorax, and 
shining; the anterior margin of the clypeus, the mandi- 
bles, and a V-shaped mark above the insertion of the 
antennae, yellow; the upper portion of the clypeus and 
tips of the mandibles ferruginous; the face and cheeks 
with silvery-white pubescence. Thorax: above, slightly 
shining, the scutellum roughly punctured, the metathorax 
clothed with long white pubescence, and transversely 
rugose ; wings fusco-hyaline, with a darker fuscous stain 
traversing the nervures, which are black ; the thorax with 
234 Mr. Frederick Smith on 
a shortish hoary pubescence. Abdomen shining; the 
apical margins of the segments with a narrow fringe of 
silvery pubescence, the abdomen not truncate at the base, 
but, as well as at the ajiex, pointed. 
Hab. South Australia (Hunter River ?). 
In the British Museum. 
6. Thynnus audax. 
Male. Length 1 inch. Head and thorax black, ab- 
domen ferruginous, the insect adorned with yellow mark- 
ings. Head and thorax with a golden yellow pubescence ; 
the clypeus, cheeks, mandibles, and orbits of the eyes, yel- 
low. Thorax: the prothorax, scutellum, post-scutellum, 
metathorax, the tegulte, and two oblique lines on the 
mesothorax, yellow; the legs ferruginous; wings fulvo- 
hyaline, nervures ferruginous towards the apex of the 
wings, but becoming fuscous towards their base. Abdo- 
men : ferruginous, with an ill-defined ovate spot on each 
side of each segment, the spots pale ferruginous, irregu- 
larly bordered with a narrow yellow line ; the basal seg- 
ment has on each side a small black ovate spot, and also 
a short line near its apical margin ; beneath, mottled with 
yellow. 
Hab. Australia. 
In the British Museum. 
7. Thynnus seductor. 
Male. Length 9? lines. Head and thorax black, the 
abdomen yellow with black fascia. Head : the clypeus 
and mandibles bright yellow, the latter black at their tips ; 
the antennae as long as the thorax. The thorax roughly 
punctured; beneath, at the sides, and also the meta- 
thorax, thickly clothed with long cinereous pubescence ; 
the anterior margin of the thoi'ax raised, the margin 
slightly incurved; the wings fuscous, the nervures black. 
Abdomen : about the same length as the head and thorax ; 
yellow, with the apical margins of the segments bordered 
with a narrow black band, each band runs into a small 
black notch in the middle, between which and the lateral 
margins, on each side, it is abruptly widened, and again 
abruptly narrowed, thus forming an oblong broader mar- 
Aculeate Hymenaptera. 235 
gin ; two or three of the apical segments have a narrow 
black band on their basal margin also ; the apical segment 
is longitudinally striated; beneath, the apical margins 
are fusco-ferruginous ; the terminal segment with a broad 
lanceolate spine, which has at its base an acute angular 
process on each side ; each band runs into a notch in the 
middle. 
Hab. Champion Bay. 
In the British Museum. 
8. Tliymms subinterruptus. 
Male. Length 8 lines. Head and thorax black, and 
variegated with yellow ; abdomen elongate, black, with 
yellow fasciae. The clypeus, mandibles, orbits of the 
eyes, interrupted at their summit, and a forked spot be- 
tween the antennas, yellow; the clypeus with an oblique 
dark line on each side, very faintly indicated. Thorax : 
the anterior margin raised, a spot at its sides, a narrow 
interrupted line a little before its posterior margin, the 
tegulae, the post-scutellum, and a spot on the scutellum, 
yellow; the apex of the posterior femora, a line beneath 
them, and a spot on the intermediate femora beneath, 
yellow ; the apex of the tarsal joints ferruginous ; the 
wings hyaline, the nervures black. Abdomen : the base, 
the apical segment, and the apical margins of all the 
segments, black ; these marginal bands united by a 
central longitudinal interrupted ferruginous line, the 
marginal bands bordered by a narrow ferruginous stain ; 
an oblong ferruginous spot on each segment towards its 
lateral margins ; beneath, the abdomen has the margins 
of the segments stained with ferruginous, also a central 
ferruginous line which expands on each segment into an 
angular shape. 
Hab. Champion Bay. 
In the British Museum. 
9. Thynnus (Agriomyia) irritans. 
Male. Length 7 1 lines. Orange-yellow: the flagellum, 
and a quadrate shape on the vertex, enclosing the ocelli, 
black. Thorax : the mesothorax black, with a quadrate 
yellow spot on the disk, and a large irregular shape be- 
neath the wings, orange-yellow ; the wings fuscous, the 
236 Mr. Frederick Smith on 
nervures black, the marginal cell dark fuscous. Abdo- 
men oblong, rounded at the base, which has a quadrate 
brown spot, the basal margins of the segments rufo- 
fuscous, the apical margins narrowly ferruginous ; be- 
neath, the margins are coloured faintly as above ; the 
apical segment with a short black spine. The antennae 
not reaching beyond the scutellum. 
Hab. Champion Bay. 
In the British Museum. 
10, Thynnus (Agriomyia) incensus. 
Male. Length 5i lines. Black, with the two apical 
segments of the abdomen red. The anterior margin of 
the clypeus with a narrow yellow border ; the head finely 
rugose. Thorax as rugose as the head, with the scutellum 
more coarsely so ; the spines at the apex of the tibiae 
white ; the wings hyaline, the nervures black ; the meta- 
thorax with thin cinereous pubescence. The abdomen 
shining ; the apical margins of the first four segments 
have, in the centre, a pair of small quadrate white 
maculae;, the first pair almost united and tapering to a 
point laterally, and narrower than the two following 
pairs ; the fourth pair narrow and tapering like the first 
pair ; the style at the apex of the abdomen black. 
Hab. Champion Bay. 
11. Tliynnus (Agriomyia) haccatus. 
Male. Length 5 lines. Head and thorax black, the 
abdomen red. The clypeus, mandibles, and a minute 
spot at the insertion of each antenna, white. The an- 
terior and posterior margins of the prothorax narrowly 
edo"ed with white ; tegulfe and post-scutellum white ; the 
legs ferruginous, with the tarsi dusky ; wings hyaline, the 
nervures black. Abdomen ferruginous, the base and 
the apical segment black ; the apical half of the first 
secyraent is divided from the black base by a transvei'se 
slightly-interrupted white line ; the four following seg- 
ments have an oblique, ovate, white spot ; the sixth 
segment is toothed on each side beneath, and the anal 
style is tinspinose. 
Hab. Champion Bay. 
. Aculeate Hymenopiera. 237 
Gen. u^LUKUs. 
^lurus volatilis. 
Male. Length 7j lines. Black, with the legs and 
abdomen red. Head : the anterior margin of the clypeus, 
the palpi, mandibles, and a curved line above the inser- 
tion of the antennae, bordering an elevation, reddish- 
yellow : the cheeks with a minute tooth at the base of 
the mandibles ; the scape ferruginous, dusky above ; the 
cheeks with long cinereous pubescence, that on the 
mesothorax fulvous. Thorax : the sides, beneath, as 
well as the metathorax, with a thin cinereous pubes- 
cence, the prothorax above, the scutellum and legs, of a 
brick-red ; the anterior margin of the prothorax and the 
post-scutellum, yellow ; wings fulvo-hyaline, with pris- 
matic reflections in certain lights. Abdomen red, black 
at the extreme base ; the sixth segment is also black at 
its basal margin. 
Hab. Adelaide. 
In the British Museum. 
Gen. Tachypteeus. 
Tachypterus alho-pictus . 
Male. Length 7 lines. Black, variegated with white. 
Head : the inner orbits of the eyes, a spot on each 
side of the clypeus, the basal half of the mandibles, 
and a narrow line behind the eyes, white. Thorax ; 
the posterior margin of the prothorax, a curved line 
from the insertion of the posterior wings traversing 
the posterior margin of the scutellum, the post-scu- 
tellum, the tubercles, the front of the anterior coxae, 
and a spot outside the the posterior pair, white ; the 
spines at the apex of the tibiee, white; the sides 
obscurely blue, as well as the metathorax ; wings fusco- 
hyaline, the nervures black. Abdomen : a minute spot 
on each side of the first segment, an interrupted line on 
the posterior margin of the second, third, and fourth, 
white ; two minute white spots at the apex. 
Hab. Australia. 
238 Mr. Frederick Smith on 
Fam. SCOLIID^. 
Gen. DiMORPHOPTERA, n. g. 
The following are the characters of the females; (the 
males are not known with certainty, though I believe the 
specimen described as D. nigripennis to be a male) . The 
maxillary palpi 6-jointed, the joints of about equal length 
and thickness, except the apical joint which is more 
slender; the labial palpi 4-jointed, the joints equal and 
short. Mandibles stout, curved, and not toothed. An- 
tennae filiform, short and stout ; the scape stout, equal in 
length to the three basal joints of the flagellum united. 
Thorax oblong, prothorax transverse, the metathorax 
truncate ; the superior wings with one marginal, and three 
sub-marginal cells ; the marginal extending half-way 
towards the apex of the wing, from the apex of the cell 
usually a short abbreviated uervure ; the first and second 
cells of about equal length ; the second receiving a re- 
current nervure in the middle, the third cell shorter, and 
receiving the second recurrent nervure towards the base, 
the apical nervure of the third submarginal is recurved, 
and much rounded towards the apex of the wing, and 
issues from the marginal cell towards, not from, its apex. 
Legs and abdomen as in the genus Myzine. 
This genus may be considered merely a section of the 
genus Myzine, from which it only differs in the arrange- 
ment and neuration of the cells of the wings ; in Myzine, 
the marginal cell receives the apical nervure of the third 
submarginal at its extreme apex, which is not the case in 
Dwio rp It op tera . 
To this genus belong Myzine signata, M. sahulosa, M. 
anthracina, M. fuseipennis, and M. unicolor. 
1. Dimorplioptcra scoliiformis. 
Female. Length 1 inch. Black : the head shining, 
the face rugose-punctate ; above, sparingly and finely 
punctured ; the mandibles falcate, smooth, shining, and 
fringed beneath with black hairs. The prothorax and 
scutellum strongly punctured, the mesothorax with finer 
scattered punctures, and with two longitudinal impressed 
lines ; the metathorax opaque ; the prothorax, scutellum, 
metathorax and also beneath, with erect black hairs ; the 
Aculeate Hymenoptera. 239 
legs very pubescent, the intermediate and posterior tibiae 
coarsely rugose outside and spinose, tlie tarsi very 
spinose ; wings dark fuscous, with reflections of pui-ple 
anel violet. Abdomen : shining, sparingly and finely 
punctured ; the margins beneath, and at the sides, fring- 
ed with black pubescence. 
Hab. Moreton Bay. 
In the British Museum. 
2. Dimorphoptera nigripennis. 
Male. Length 7^ lines. Black : with dark brown wings. 
Head ovate ; slightly shining, and closely punctured ; 
the face and cheeks thinly covered with erect griseous 
pubescence ; the antennee rather stout, extending to the 
apex of the scutellum ; the mandibles bidentate. Thorax 
as long- as the abdomen, and thinly sprinkled with short 
griseous pubescence ; closely punctured ; the tibiae and 
tarsi with short griseous pile ; wings very dark brown, 
palest at their apical margins. Abdomen oblong-ovate, 
smooth and shining, having violet reflections in certain 
lights. 
Hab. Australia. 
This is the only example of a supposed male of this 
genus that I have seen ; it is in the National Museum ; 
it differs from the male of Myzine, in the short semi- ovate 
form of the abdomen, and in being destitute of the spine 
at the apex. 
3. Dimorphoptera morosa. 
Female. Length 10 lines. Black and shining, with 
dark fuscous wings. Head narrower than the thorax, 
shining on the vertex, the face coarsely punctured ; 
mandibles very obscurely ferruginous towards the tips ; 
the clypeus, cheeks, and posterior margin of the vertex 
with cinereous pubescence. Thorax : the pro thorax and 
scutellum coarsely punctured, the former thinly clothed 
with cinereous pubescence ; the mesothorax shining, 
and with a few scattered punctures ; the tibife and tarsi 
strongly spinose, the calcaria at the apex of the tibise 
white; wings dark fuscous. Abdomen shining, and with 
fine scattered punctures ; the apical segment covered 
with short rigid spines. 
Hab. Australia (Melbourne ?). 
In the British Museum. 
240 Mr. Frederick Smith on 
4. Dimorphoptera clypeata. 
Female. Length 8 lines. Black : the abdomen banded 
with orange. Head and thorax with thin cinereous 
pubescence ; the clypeus, inner margin of the eyes, and 
a line behind them^ yellow ; the mandibles fringed be- 
neath with stiff ferruginous hairs ; the wings fusco-hya- 
linej the nervures black, the posterior wings palest ; the 
legs with a glittering white scattered pubescence, the 
calcaria white ; the posterior femora incrassate, com- 
pressed beneath into a thin plate, the tibias with a row 
of blunt teeth outside. Abdomen smooth and shining, 
a few scattered punctures on the fifth segment, and 
along the apical margins of the other segments ; the 
second, third, and fourth segments with a broad orange 
band, not extending to the posterior margins, the bands 
notched in the middle posteriorly, and curved to the 
sides ; the apical segment densely covered with ferru- 
ginous hair ; beneath, the second and third segments have 
a broad basal band notched in the middle posteriorly. 
Hab. Champion Bay. 
5 . Dhnorplioptera fastuosa . 
Female. Length 7 lines. Ferruginous: the head, tip 
of the abdomen, mesothorax, and scutellum, black. The 
mandibles, anterior margin of the clypeus, and the scape 
of the antennge, ferruginous ; tips of the mandibles black. 
Thorax : the prothorax, sides, and legs, with ferruginous 
pubescence ; the spines at the apex of the tibia? pale tes- 
taceous ; the intermediate and posterior thickly spinose 
outside ; the wings fulvo-hyaline, the nervures ferru- 
ginous. Abdomen punctured, most strongly and closely 
towards the apex, the apical segment with coarse longi- 
tudinal punctures ; its tip rufo-piceous, smooth, and shin- 
ing 5 the wings extending to two-thirds the length of 
the abdomen. 
Hab. Chatnpion Bay. 
In the British Museum. 
This species has the wings shorter than the abdomen. 
Aculeate Hymenoptefa. 241 
Gen. ScoLiA. 
Scolia (Dielis, Saussure) intrudens. 
Female. Length 7 lines. Blacky with the second and 
third segments of the abdomen yellow. A transverse 
yellow interrupted line on the vertex of the head above 
the ocelli, a narrow yellow line behind the eyes, and 
a line on the lower part of their inner margin ; the 
mandibles, and antennee beneath, ferruginous. The 
mesothorax thinly covered with ferruginous hair; thei 
tibiae and tarsi ferruginous, the latter most brightly so ; 
the calcaria pale testaceous ; the wings fusco-ferruginous ; 
the nervures ferruginous ; two submarginal cells, and two 
recurrent nervures. Abdomen: the apical margin of the 
first segment narrowly, and the two following segments 
entirely yellow, on each side of these segments a short 
narrow ferruginous line, the third segment has also 
a faint minute ferruginous spot a little within the outer 
line ; the apical segment longitudinally striated ; beneath, 
shining black, the margins of the segments fringed with 
white hairs. 
Hab. Champion Bay. 
Fam. POMPILID^. 
Gen. PoMPiLus. 
1. Potnpilus velox. 
Male. Length 5j lines. Black, with yellow wings. 
Head : the sides of the clypeus, and of the face and 
labrum, yellow ; tips of the mandibles ferruginous ; the 
head has a thin griseous pubescence, with some longer 
hairs on the cheeks. Thorax : rounded anteriorly, the 
posterior margin of the prothorax yellow and angulated ; 
the metathorax truncate : the entire insect has a cover- 
ing of cinerous pubescence, which is most dense on the 
underside of the thorax ; the anterior tibias and tarsi fer- 
ruginous; the second, third, and fourth joints of the in- 
termediate tarsi ferruginous, with their tips black; the 
spines at the apex of the tibiae pale testaceous; wings 
TRANS. ENT. SOC. 1868. — PART II. (jULy) . R 
242 Mr. Frederick Smith on 
fulvo-hyaline^ with their apical margins bordered with 
fuscous; the nervures ferruginous. Abdomen, smooth 
and slightly shining, a cream-coloured ovate spot on each 
side of the third segment at its basal margin. 
Hab. Australia. 
In the British Museum. 
2. Po'injnlus lugubris. 
Female. Length og- lines. Black, with yellow anten- 
nfB. Head and thorax semi-opaque, the abdomen shining. 
The antennee inserted at the sides of a bilobate promi- 
nence on the face ; the front and cheeks with thinly scat- 
tered cinereous hairs. Thorax: the sides, and beneath, 
with scattered cinereous hairs ; wings dark fuscous, their 
apex as well as the externo-medial cell palest, a darker 
cloud also crosses the anterior wings at the second sub- 
marginal cell. The abdomen with a short petiole. 
Hab. Champion Bay. 
In the British Museum. 
3. Pompilus distinctus. 
Male. Length 5 lines. Black: the prothorax, and the 
second and following segments of the abdomen, reddish- 
yellow. Head: the antennee, clypeus, labrum, mandibles, 
a spot between the antennae, and a line at the inuer and 
outer orbits of the eyes, orange-yellow. The prothorax 
above, the apex of the femora, the tibias and tarsi, orange- 
yellow; the wings fulvo-hyaline. Abdomen orange-yel- 
low, with the basal segment black. 
Hab. Champion Bay. 
In the British Museum. 
4. Pompihis tricolor. 
Male. Length 6 lines. Black: variegated with yellow 
and ferruginous. Head : antennae ferruginous, fuscous 
above ; the face, scape in front, and behind the eyes, yel- 
low. Thorax black : the prothorax, a V -shaped mark on 
the disc of the mesothorax, the tegulse and an epaulet 
over them, the scutellum, a line on the post-scutellum 
with a minute dot at each end of the line, and the apex 
Aculeate Hymenopiera. 243 
of the metathorax, yellow ; the anterior and intermediate 
cox^ in fronts with the tibi^ and tarsi^ as well as the 
posterior tibiae and the base of the first joint of the tarsi, 
yellow; the anterior and intermediate femora reddish, 
as well as the base of the posterior femora; the posterior 
tarsi dusky; wings fulvo-hyaline, their apex fuscous. 
Abdomen : the first and fourth segments black, the rest 
yellow ; the apical margins of the second and third fusco- 
ferruginous. 
Hab. Adelaide. 
In the British Museum, 
5. Pompilus diver sus. 
Female. Length 4| lines. Black: with the head and 
thorax blood-red. The face with a silvery- white pubes- 
cence ; the tips of the mandibles and the antennae black, 
the scape red beneath ; the head a little wider than the 
thorax. The metathorax rounded behind; the legs 
obscure fusco-ferruginous, the anterior tibise and tarsi 
brightest ; the wings fuscous, palest at their base. Ab- 
domen covered with a silky slate-coloured pile. 
Hab. Sydney, or Moreton Bay. 
In the British Museum. 
6. Pompilus irritahilis. 
Female. Length 4|-6 lines. Black: the wings with 
a yellow fascia ; the body covered with a fine silvery 
silky pile, very bright and glittering in certain lights, 
and most dense on the face, and body beneath. Thorax : 
the posterior margin of the prothorax rounded ; wings 
fusco-hyaline, with a broad yellow fascia towards the apex 
of the anterior wings, enclosing the marginal, two sub- 
marginal, and apical half of the third discoidal cell ; the 
fascia does not quite extend to the posterior margin of 
the wing : the spines at the apex of the tibi^ pale testa- 
ceous ; the extreme apex of the anterior tibiae and joints 
of the tarsi, as well as the apex of the intermediate tibiae, 
ferruginous. Abdomen rounded at the base. 
The male closely resembles the female, but has the 
anterior tibiae and tarsi, as well as the antennae, ferruginous ; 
the posterior tibiae with a pale spot at their base. 
Hab. Australia. 
In the British Museum. 
r2 
244 Mr. Frederick Smith on 
7. Pompihis infandus. 
Male. Leiig'tli 8| lines. Black, with the metathorax 
and base of the abdomen ferrugdnous. Head; narrower 
than the thorax ; the antennee, palpi, and tips of the 
mandibles, ferruginous; the face covered with silvery 
pile. Thorax : the posterior margin of the prothorax 
angulated ; the wings fulvo-hyaline, the nervures ferru- 
ginous ; the metathorax, which is ferruginous above, is 
tuberculate on each side.; the legs ferruginous. Abdo- 
men sub-petiolate, the petiole black ; the first and second 
segments ferruginous, except the posterior margin of 
the second, which is black, the following segments also 
black ; beneath, coloured the same as above. 
Hab. Australia. 
In the British Museum. 
8. Pompilus vespoides. 
Female. Length 7^-10 lines. Black : the head, 
legs, and abdomen except its base, ferruginous. . Head 
a little wider than the thorax, a black spot on the front 
enclosing the ocelli ; antennas of the same colour as the 
head ; tips of the mandibles black. Thorax : rounded 
anteriorly and posteriorly ; pilose, with, in certain lights, 
a violet lustre ; wings flavo-hyaline, their apical margins 
with a narrow fuscous border ; the coxEe, trochanters and 
base of the femora, black. Abdomen: the basal segment 
black ; the apical margins of the second, third, and 
fourth segments slightly fuscous, forming in the middle 
of each segment an ill-defined angular shape ; beneath, 
black, except at the extreme apex. 
Hab. South Australia (Moreton Bay ?) . 
In the British Museum. 
9. Pompilus melanchoUcus . 
Female. Length 5 lines. Black, and ornamented 
with cinereous spots and bands. Head : rather wider 
than the thorax, the face and cheeks covered with 
cinereous pile ; tips of the mandibles ferruginous ; the 
clypeus smooth and shining at its anterior margin. 
Thorax : the prothorax in front, its posterior margin, 
the post-scutellura, and two oblique pubescent spots on 
the metathorax, cinereous ; the coxae and femora beneath. 
Aculeate Hymenoptera. 245 
cinereous ; the tibiee and tarsi cinereous above ; wings 
fuscous, with their apical margins darkest. Abdomen 
smooth and shining, with cinereous fasciae on the apical 
margins of the segments. 
The male resembles the female. 
Hab. Champion Bay. 
In the British Museum. 
Gren. Priocnemis. 
1. Priocnemis affectata. 
Female. Length 10 lines. Black, with the two basal 
segments of the abdomen ferruginous, wings maculated. 
Head as wide as the thorax, the face and cheeks with 
a fine griseous pile, the head thinly sprinkled with fuscous 
hairs ; the antennee bright ferruginous ; the iabrum, 
mandibles, and palpi, dark ferruginous. Thorax : the 
posterior margin of the prothorax arched ; the sides 
parallel ; the metathorax, the coxse, and sides, covered 
with a fine glossy pile, reflecting golden tints in difterent 
lights ; the truncation of the metathorax smooth, not 
shining, the upper surface transversely grooved ; wings 
fulvo-hyaline, their apical margins with a narrow fuscous 
border, and also a quadrate fuscous spot at the apex of 
the third discoidal cell, extending upwards into the 
corners of the second and thii-d sub-marginals ; legs 
bright ferruginous, with black cox«. Abdomen : the 
extreme base, also the base of the second segment in the 
middle, its apical margin broadly, and the following seg- 
ments entirely black; the apical segment with bright 
ferruginous hairs. 
Hab. South Australia (Moreton Bay ?) . 
In the British Museum, 
2. Priocnemis defensor. 
Female. Length 7-10 lines. Black, with ferruginous 
wings. Head narrower than the thorax, antennee incras- 
sate ; the body pilose, in some lights having a dull 
violet lustre. Thorax : truncate posteriorly, slightly 
rounded anteriorly ; the posterior margin of the pro- 
thorax curved ; the sides parallel ; the wings ferruginous. 
246 Mr. Frederick Smith on 
their bases and apical margins narrowly dark fuscous ; 
the nervures ferruginous^ black at the extreme base 
of the anterior wings ; the metathorax iinpunctate^ and 
with an impressed line above, in the middle. 
Hab. South Australia. 
In the British Museum. 
3. PriooienMS Polydorus. 
Female. Length 11 lines. Black: the wings fuscous, 
fasciated with yellow. Head rather narrower than the 
thorax ; the face below the insertion of the antennae covered 
with griseous pile, above the antennae with short fuscous 
pubescence, the vertex not pilose ; the cheeks with a 
thin, long, griseous pubescence ; the antennae with a fine 
fuscous pile. Thorax : oblong, the sides parallel, the 
posterior margin of the prothorax rounded ; opaque, 
the sides beneath, as well as the legs, with a shin- 
ing griseous pile, intermixed with fine long griseous 
pubescence ; the metathorax truncate ; above, with a 
central impressed line, the truncation transversely finely 
rugose ; wings dark fuscous, the anterior pair with a 
broad yellow fascia, extending from the base to the apex 
of the marginal cell, and narrowing posteriorly. Abdo- 
men smooth and shining, the apical segment opaque 
and punctured ; the basal segment with a patch of sil- 
very-white hair on its margin laterally, sometimes also on 
the second segment. 
Hab. Australia (Moreton Bay?). 
In the British Museum. 
4. Priocnemis ephippiata. 
Female. Length 8 lines. Black, with the meso- 
thorax and scutellum red. Head : the flagellum orange- 
yellow ; ths tips of the mandibles ferruginous ; the 
clypeus and face, as high as the insertion of the antennae, 
with a thin silvery-white pile. Thorax : the meso- 
thorax, scutellum, and post-scutellum, blood-red ; the 
wings fuscous ; the spines at the apex of the tibiae pale 
testaceous. Abdomen shining, the apical margins of the 
segments narrowly fringed with silvery-white pubes- 
cence. The insect has a silvery pile beneath. 
Hab. Adelaide. 
In the British Museum, 
Aculeate Hymenoptera. 247 
Fam. SPHEGID^. 
Gen. Ammophila. 
1. Ammophila impatiens. 
Female. Length 1 inch. Head and thorax black, 
legs and petiole of the abdomen ferruginous. Head : 
the scape ferruginous in front, the face covered with 
silvery pile ; thinly sprinkled with fuscous hairs. Tho- 
rax : pro- and meso-thorax coarsely striated trans- 
versely, the metathorax obliquely so ; the femora, tibiae, 
and basal half of the first joint of the tarsi, ferruginous, 
the other joints black; wings fulvo-hyaline, their ner- 
vures ferruginous, tips of the wings clouded. Abdo- 
men.: the petiole elongate, and, as well as the first 
segment, bright ferruginous, a black spot in the middle 
of the petiole ; the apical joints of the abdomen blue-black. 
Hab. Champion Bay. 
In the British Museum. 
2. AmtnopMla ardens. 
Female. Length 13 lines. Black: the legs and petiole 
and first segment of the abdomen ferruginous. Head : 
the antennee, palpi, and basal half of the mandibles ferru- 
ginous, the flagellum fuscous towards the apex ; the face 
with golden pile. Thorax : the prothorax and meta- 
thorax transversely striated ; the posterior portion of the 
mesothorax in the middle, the scutellum and post-scu- 
tellum longitudinally striated ; the sides and beneath 
rugose ; the legs bright ferruginous ; the tarsi densely 
spinose, the spines black ; the anterior and intermediate 
coxae behind, and the posterior pair in front, black; 
wings fulvo-hyaline, the anterior pair clouded at their 
apex. Abdomen ; the petiole and first segment bright 
ferruginous, the former with a black spot in the middle ; 
the following segments blue-black; the petiole elongate. 
Hab. Swan River. 
In the British Museum, 
248 Mr, Frederick Smith on 
Gen. Sphex. 
Spliex argentifrons. 
Peinale. Length 9^ lines. Head and thorax black, 
the abdomen red. Head ; the face covered with bright 
silvery pile, interspersed with long thin white pubescence, 
which also thinly covers the whole head; the mandibles 
ferruginous. The thorax clothed with pale glittering 
pubescence, which is most dense on the metathorax, and 
most sparing on the mesothorax above; the legs bright 
ferruginous, with the coxse, and apical half of the pos- 
terior tibias black; the wings fulvo-hyaline, their apical 
margins faintly clouded, the nervures ferruginous. The 
abdomen bright ferruginous. 
Hab. Champion Bay. 
In the British Museum. 
Fam. LARRID^. 
Gen. PisoN. 
Pison oiitidus. 
Female. Length 6 lines. Black: the mesothorax and 
abdomen shining. Head opaque black, the face with a 
silvery-white pubescence. Thorax: beneath, the sides 
and the metathorax with a thin cinereous pubescence, 
the legs with a glittering cinereous pile ; the mesothorax 
finely punctured; the metathorax with a central deeply 
impressed channel ; above, with oblique elongate punc- 
tures, the truncation strongly punctured, the punctures 
elongate and transverse ; the wings dark fuscous, sub- 
hyaline at their base. Abdomen delicately punctured, 
the apical margins of the segments with silvery-white 
fasciae ; beneath, smooth and shining. 
Hab. Champion Bay. 
Fam. NYSSONID^. 
Gen. GoRYTES. 
Gorytes ornatus. 
Female. Length 5 lines. Black: variegated with yel- 
low and red. Head: the clypeus, scape, and mandibles 
yellow ; antennas much thickened towards the apex, black 
Aculeate Hymenoptera. 249 
above and ferruginous beneath; the eyes ochraceous. 
Thorax : the collar^ tubercles, a line beneath the wings 
which has a quadrate notch in the middle, a line on the 
sides of the mesothorax continued over the tegulge, the 
scutellum and post-scutellum, yellow ; the anterior and 
intermediate legs, the tarsi and posterior tibias outside, 
yellow ; the intemnediate coxge, trochanters, the anterior 
and intermediate femora above, the posterior coxae, tro- 
chanters, and femora, ferruginous; the posterior tibiae 
and basal joint of the tarsi black; the tarsal claws ferru- 
ginous, the pulvillus between them black ; the wings hy- 
aline. Abdomen: the second segment ferruginous, a 
broad yellow band on the apical margin of the basal seg- 
ment; a large yellow subovate macula on each side of the 
second segment, from which a short narrow line, termi- 
nating in a point, runs inwards ; the apical margins of the 
following segments bordered with yellow. 
Hab. Champion Bay, 
Fam. CRABRONID^. 
Gen. Crabeo. 
1. Crahro neglectus. 
Male. Length 4 lines. Black; with orange bands on 
the abdomen. Head wider than the thorax ; the clypeus 
silvery ; the scape yellow. Thorax : an interrupted 
orange line on the collar : the anterior legs, and the in- 
termediate tibiae and tarsi, ferruginous; the anterior tibiae 
white at their apex; wings fusco-hyaline, the nervures 
black; the metathorax coarsely rugose. Abdomen: 
smooth and shining, an interrupted orange line on the 
second segment near the basal margin, and an entire 
fascia at the basal margin of the fourth segment: the 
apical margins of the following segments narrowly rufo- 
testaceous. 
Hab. South Australia. 
In the British Museum. 
2. Crahro nigro-maculatus. 
Female. Length 3^ lines. Black : the abdomen fer- 
ruginous, with a large black macula. Head as wide as 
the thorax ; the ocelli in a triangle, the scape, and three 
250 Mr. Frederick Smith on 
or four joints of the flagellum, ferruginous; a yellow line 
on the mandibles at their base. Thorax: the knees, tibiae, 
and tarsi ferruginous; the basal joint of the anterior tarsi 
black; wings hyaline, the nervures fuscous. Abdomen: 
ferruginous ; a large black macula above, divided across 
the middle at the apical margin of the second segment. 
Hab. Moreton Bay. 
In the British Museum. 
3. Crahro tridentatus. 
Female. Length 7 lines. Black: the abdomen with 
orange bands. Head: quadrate, wider than the thorax; 
the clypeus and cheeks with a silvery pile, the former 
with three teeth at its anterior margin, one central, the 
others at the lateral angles ; the scape yellow ; the ocelli 
in a curve. Thorax: an interrupted orange line on the 
collar ; the tibiae, tarsi, and femora above, ferruginous ; 
wings sub-hyaline, the nervures fuscous. Abdomen : an 
orange fascia at the basal margin of the second segment, 
the fourth and following segments entirely orange. 
Hab. Moreton Bay. 
In the British Museum. 
Fam. MASARID^. 
Gen. Paeagia. 
1. Paragia vespiformis. 
Smith, Trans. Ent. Soc. 3rd Ser. ii. 393, $ . 
Male. Length 7 lines. Opaque black : the clypeus, 
mandibles, scape of the antennae in front, and a line on 
each side of the face along the inner margin of the eyes 
but not extending above the insertion of the antennae, 
yellow. A narrow line on the anterior margin of the 
prothorax, the inner margin of the tegulae, and the pos- 
terior margin of the scutellum, yellow ; the coxae, femora, 
intermediate and posterior tibiae, yellow beneath ; a narrow 
yellow line beneath the basal joint of the intermediate 
and posterior tarsi ; the wings sub-hyaline, the nervures 
Aculeate Hymenoptera. 251 
black. The basal segment of the abdomen concave in 
front, elevated on each side ; the elevations acutely mar- 
gined laterally, yellow above, and at the sides, outwardly ; 
the five following segments with a yellow band on their 
apical margins, slightly interrupted in the middle ; the 
apical segment black. Beneath, yellow ; a blunt yellow 
tooth, or spine, projecting from the middle of the second 
segment, and slightly curved towards the apex of the 
abdomen ; the basal segment black. 
The female of this species was described from a speci- 
men received from the Swan River ; it is in the National 
Collection. Both sexes were sent by Mr. Du Boulay in 
a small collection, presented to me by that gentleman ; 
they are from Champion Bay. 
2. Paragia morosa. 
Female. Length 8 lines. Reddish-yellow, not shin- 
ing ; the ocelli and teeth of the mandibles black. The 
mesothorax with a central lanceolate patch, and the 
suture at the base of the scutellum, black; the pectus 
black ; the anterior wings ferrvxginous, becoming sub- 
hyaline at their apical margins; the marginal cell occu- 
pied by a black macula ; the metathorax produced 
laterally above, into an acute angle. Abdomen ; the 
apical margins of the second and third segments very 
narrowly bordered with black, the basal margin of the 
third slightly so, but becoming laterally more broadly 
so ; the third segment is also black at the base laterally ; 
the third and fourth segments are black beneath, the 
third having the apical margin yellow, most broadly so 
in the middle and at the sides. 
Hab. Champion Bay. 
3. Paragia concinna. 
Female. Length 5 lines. Black and orange. The 
head black, with the base of the mandibles, labrum, 
clypeus, a bell-shaped spot between the antennae, the 
inner margins of the eyes, and a broad streak behind 
them, orange-red ; the scape of the antennae ferruginous. 
The thorax black, with the prothorax above, the tegul^ 
and a narrow epaulet over them, an elongate spot on 
.262 Mr. Frederick Smith on 
the mesothorax behind, and a minute one on each side 
of it, the scutellum, sides of the metathorax, and the 
legs, orange ; the anterior coxae black ; wings sub-hya- 
line, with a fuscous cloud along their anterior margins, 
which becomes black in the marginal cell ; the nervures 
ferruginous towards the base of the wings, black beyond. 
Abdomen orange ; the second segment, and the base of 
the fourth, black ; the base of the second segment 
orange, interrupted in the middle. Beneath, the second, 
fourth, and fifth segments black. 
Hab. Champion Bay. 
4. Paragia nasuta. 
Female. Length 6^ lines. Black : the face orna- 
mented with yellow, and the body with orange-red 
markings. Head : the anterior margin of the clypeus 
produced ; a transverse spot at its base, and an ovate 
one above, between the antennte, yellow ; a yellow spot 
behind the eyes ; the mandibles ferruginous at their 
apex, and sub-dentate. Thorax : the prothorax above, 
a sub-quadrate spot beneath the wings, the tegulffi and a 
line on the mesothorax at their margin, the scutellum 
and an abbreviated line before it, orange-red ; the meta- 
thorax with a blunt orange-red tooth on each side, and 
a yellow line on the post-scutellum ; the tibite, tarsi and 
femora, red, the latter more or less black beneath ; the 
wings hyaline, the anterior margin of the superior pair 
fuscous. Abdomen : a broad orange-red band on the 
apical margins of the first and third segments; the apical 
segment of a testaceous red, except at its extreme base. 
The male is rather smaller, and has the clypeus, a spot 
above it, and a line on the scape in front, white ; of two 
examples, one has an abbreviated white line on the inner 
margins of the eyes ; the mandibles white outside ; the 
central red line before the scutellum obsolete ; in other 
respects resembling the female. 
This species closely resembles P. deeept&r, but that 
insect has the mandibles furnished with three prominent 
teeth, and the basal segment of the abdomen is much 
narrower. 
Hab. Champion Bay. 
In the Rntish Museum. 
Aculeate Hynienoptera. 253 
Fam. ANDRENID^. 
Gen. Lampeocolletes. 
Lamprocolletes ruheUus. 
Male. Length 5j lines. Head and thorax black, the 
abdomen ferruginous. The face densely covered with 
golden 3^ellow pubescence, that on the cheeks paler; the 
mandibles and antenna? ferruginous, the latter dusky 
above. Thorax densely pubescent, ochraceous above, 
much paler beneath ; wings fulvo-hyaline, the nervures 
ferruginous; legs pale ferruginous. Abdomen ferrugi- 
nous, the basal segment thinly covered with pale pubes- 
cence, margins of the segments testaceous, and fringed 
with whitish pubescence. 
Hab. West Australia. 
Gen. CEsTROPSis, n. g. 
Head transverse, narrower than the thorax ; ocelli in 
a curve on the vertex; the antennse clavate, with the 
scape short and stout, one-third shorter than the third 
joint, which is much attenuated, the following joints fili- 
form. Mentum elongate, labium short and lanceolate, 
about the same length as the paraglossas, which are 
somewhat pear-shaped, and pubescent as well as the 
labium. Maxillary palpi six -jointed, the basal joint 
being longer and stouter than the others, each in 
succession being shorter and more slender. Thorax ovate, 
the wings with one elongate narrow marginal cell, round- 
ed at its apex ; three submarginal cells, the first one- 
third longer than the second, the second narrowed 
towards the marginal, the third rather shorter than the 
second, and narrowed towards the marginal; the recur- 
rent nervures received in the middle of the second and 
third submarginal cells. Abdomen sub-conical. (Male.) 
1. QSstropsis puhescens. 
Male. Length 6-7 lines. Black : densely clothed with 
ochraceous pubescence ; in some examples the pubes- 
cence is darker, being a dirty yellow. Antennse pale fer- 
ruginous, fuscous, or black above, except the two or three 
apical segments; tips of the mandibles rufo-piceous. 
254 Mr. Frederick Smith on 
Thorax densely pubescent; legs pale ferruginous, the 
intermediate coxee and femora behind, as well as the pos- 
terior femora, dark fuscous or black, the tips of the latter 
ferruginous outside; wings hyaline, the nervures ferru- 
ginous, the costal black. Abdomen with a nigro-aeneous 
hue, all the segments densely fringed with pubescence ; 
beneath, thinly pubescent. 
Hab. Champion Bay, and South Australia. 
In the British Museum. 
Gen. Stenotrittts. 
Stenotrihis smaragdinus. 
Female. Length 8| lines. Bright green, finely sha- 
greened, not shining ; the ocelli black, placed forwards 
in a curve, an abbreviated carina in front of the anterior 
one ; a dark space on each side of the ocelli between them 
and the eyes; the clypeus with purple reflections; an- 
tennae black. The metathorax, the thorax beneath and 
at the sides, with white pubescence ; the legs have a pale 
pubescence, that on the intermediate and posterior tibiee 
and tarsi short and dense. The wings hyaline. The 
abdomen has a thick dark fuscous fimbria at the apex; 
on the second segment on each side at the basal margin 
is a dark fuscous impressed spot ; beneath, the apical 
margins of the segments are fringed with pale pubes- 
cence, that on the apical segment being dark fuscous. 
Hab. Champion Bay. 
In the British Museum. 
The insect from which the generic characters were 
drawn, (Cat. Hymenop. p. 119) was not in perfect pre- 
servation ; the tongue was wanting ; but the remarkable 
pectinate spurs on the intermediate and posterior tibiee, 
in conjunction with other peculiarities, were deemed 
sufficient characters whereby it might be recognized; 
the second species now described is also imperfect, the 
tongue, part of the antennae, and one of the anterior legs 
are wanting ; but in every particular in which I have 
the means of comparing this species with the type 
8. elegans, they agree; both are from Australia. 
1 
Aculeate Hymenoptera. 255 
Fam. APID^. 
Gen. LiTHUEGus. 
Lithurgus cognatus. 
Female. Length 7 4 lines. Black, with ferruginous 
pubescence on the apical segment of the abdomen. 
Head rather wider than the thorax, closely punctured ; 
the face covered with white pubescence, that on the 
cheeks is of the same colour, but longer, and more 
sparing ; the face with a transverse bituberculate eleva- 
tion at the base of the clypeus ; an elevated ridge on 
each side of the central tubercle, curving down to the 
base of the mandibles ; the mandibles short, stout, and 
bidentate ; the flagellum of the antennae obscurely ful- 
vous beneath ; the labrum of a broad lanceolate form, 
and fringed with ferruginous hair. Thorax : the pubes- 
cence pale cinereous, that on the femora and tibiae is 
of the same colour, that on the tarsi dark brown ; on the 
basal joint of the posterior tarsi within, it is tinged with 
ferruginous ; the posterior tibiee outside are roughened 
with a multitude of short stout teeth or spines ; wings 
hyaline, their nervures black. Abdomen : the apical 
margins of the segments narrowly fringed with pale 
ochraceous pubescence ; the apical segment as well as 
the abdomen beneath clothed with bright ferruginous. 
Male. Similarly coloured to the female ; the tarsi 
elongate, the posterior coxae and femora incrassate ; the 
basal joint of the postei'ior tarsi has, in the middle within, 
a tuberculate blunt flattened process ; the tibiae are very 
stout, and slightly curved, 
Hab. Champion Bay. 
In the British Museum. 
Although both sexes are considerably larger than 
Lithurgus rubricatus, described in my Catalogue of Hy- 
menoptera, from North Australia, I am inclined to believe 
this may be a finely developed form of the same species ; 
the tubercle on the face of the female, which is rudimen- 
tary in L. rubricatus, is the most marked distinctive 
character. 
256 Mr. Frederick Smith on 
Gen. Megachile. 
1. Megachile monstrosa. 
Female. Length 10 lines. Blacky with fuscous wings, 
sub-hyaline at their base. Head : large, quadrate, as 
wide as the thorax ; mandibles very stout, with three 
teeth at their apex, which is obliquely truncate; the 
clypeus elevated on each side, at the base, into a stout 
tubercle or tooth, acute at its apex; the cheeks armed 
with a stout acute bent tooth ; the head rugose behind 
the eyes. Thorax rugose ; the wings dark fuscous, sub- 
hyaline at their basal and apical margins ; beneath, the 
sides and the metathorax clothed with griseous pubes- 
cence ; the legs have a stout griseous pile ; the basal 
joint of the tarsi with a short, dense, fulvous pubescence. 
The abdomen clothed beneath with dense, pale, glitter- 
ing fulvous pubescence ; the basal segment deeply con- 
cave in front, and with a patch of pale pubescence on 
each side above. 
Hab. Champion Bay. 
In the British Museum. 
2 . Megachile Jahricator. 
Female. Length 6| lines. Black, wings with their 
apical half dark fuscou.s, basal segment of the abdomen 
covered with white pubescence. Head and thorax 
opaque, the abdomen slightly shining ; the face, as high 
as the ocelli, with pale ochraceovis pubescence, that on 
the clypeus black ; the mandibles with two stout teeth 
at their apex, and a third, more slender and acute within. 
Thorax : the legs with short, pale, glittei'ing pubescence, 
that on the posterior and intermediate basal joint of the 
tarsi black within ; the same joint of the anterior tarsi 
has it ferruginous. Abdomen : the basal segment, the 
basal margin of the second, and that of the third seg- 
ment laterally, with white pubescence ; beneath, clothed 
with bright white pubescence, that on the apical segment 
black, with a few white hairs in the middle. 
Male. Length 5 lines. Closely resembles the female ; 
the mandibles with a single tooth at the apex ; the basal 
joint of the anterior tarsi broadly expanded into a thin 
semi-transparent plate ; all the joints fringed behind with 
long pale pubescence, towards the base of the first joint 
it is fuscous; the apical segment rounded at its margin, 
with a small acute tooth in the middle, 
Hab. Champion Bay. 
In the British Museum. 
Aculeate Hymenoptera. 257 
3 . Megachile fumip ennis . 
Female. Length 7 lines. Black : tlie basal segment 
of the abdomen clothed with white pubescence, the 
wings dark fuscous. Head closely and finely punc- 
tured, the vertex with larger punctures interspersed ; 
the face thickly covered with white pubescence ; the 
mandibles stout, having elongate punctures, and a single 
tooth at the apex. Thorax : the mesothorax roughened 
with confluent punctures ; the prothorax, the sides, and 
the metathorax with white pubescence ; the legs have a 
short black pubescence ; the tarsal claws ferruginous. 
Abdomen clothed beneath with black pubescence. 
Hab, Champion Bay. 
In the British Museum. 
4. Megachile sexmaculata. 
Female. Length 5| lines. Black: the face with golden 
yellow pubescence, the abdomen with six white maculas, 
the apex ferruginous. The mandibles with longitudinal 
strigose punctures, a single tooth at the apex, and 
fringed beneath with ferruginous hairs ; the cheeks with 
cinereous pubescence. The thorax with cinereous pubes- 
cence, as well as the legs; the basal joints of the tarsi 
densely clothed above with short cinereous pubescence, 
but with pale fulvous beneath ; wings fusco-hyaline, the 
nervures black. Abdomen: a patch of snow-white 
pubescence on each side of the three basal segments; a 
large ovate ferruginous spot on the apex, occupying the 
apical and a large portion of the fifth segment ; the pol^ 
len brush beneath is silvery white. 
Hab. Champion Bay. 
In the British Museum. 
6. Megachile imitata. . 
Female. Length 6 lines. Black, and closely resem- 
bling M. argentata. The face clothed with pale yel- 
low pubescence, that on the cheeks silvery. The thorax 
with pale yellow pubescence above, sparing on the disc ; 
on the sides and beneath it is whitish, as is also the thin 
short pubescence on the legs above, on the tarsi beneath 
it is fulvous ; the wings sub-hyaline, the nervures black. 
TRANS. ENT. SOC. 1868. — PART II. (jULy) . S 
258 Mr. Frederick Smith on Aculeate Hymenoptera. 
Abdomen : the apical margins of the segments with 
fasciae of pale yellow pubescence ; beneath^ clothed with 
silvery white pubescence. 
Hab. Champion Bay. 
In the British Museum. 
6. Megachile nasuta. 
Female. Length 6 lines. Black: with the tip of the 
abdomen red. Head quadrate, closely and evenly punc- 
tured; the clypeus elevated, forming in front a smooth 
shining hollow space, coarsely punctured above, the 
margin irregular, sub-dentate ; the face with cinereous 
• pubescence. The pubescence on the sides of the thorax 
and on the legs, cinereous, nearly white, that on the 
basal joint of the tarsi within, pale fulvous; the claws 
ferruginous. Abdomen: the basal segment covered 
with white pubescence, the apical one has a fulvous 
patch above ; beneath, clothed with pale fulvous pubes- 
cence. 
Hab. Champion Bay. 
In the British Museum. 
Gen. Ceocisa. 
Crocisa alho-rnaculata. 
Female. Length 6 lines. Black, variegated with snow 
white spots. Head clothed with white pubescence, a 
snow-white spot at the base of the mandibles. Thorax: 
the sides clothed with white pubescence; in the white is 
a small ovate black spot, and a transverse black line ; the 
mesothorax with a white ovate spot on each side in frCnt, 
an oblong line between, another in front of the tegul^, 
and four ovate ones on the disc ; the scutellum deeply 
notched, a tuft of white hair in the notch; wings fuscous, 
the posterior wings and base of the anterior pair sub- 
hyaline ; also two or three small hyaline spots just beyond 
the enclosed cells of the front wings ; the tibias and basal 
joint of the tarsi white outside. Abdomen: a white spot 
on each side at the basal margin, and two united spots on 
each side of the first segment; the second segment has a 
broad interrupted white fascia on its apical margin, 
which also runs up the sides laterally; the third and 
fourth segments have two ovate spots on each side, and 
the fifth segment a simple spot ; the segments have a 
spot on each side beneath. 
Hab. Champion Bay.