484 Mr. T. D. A. Cockerell — Descriptions and 
LX. — Descriptions and Records of Bees. — XLVIt. 
By T. D. A. Cockerell, University of Colorado. 
Ceratina lata, Spiuola. 
Trinidad, March 1912 {Hugh Scott). New to Trinidad. 
Ceratina minima, Friese. 
Trinidad, March 22, 1912 {Hugh Scott). Three males, 
marked " Diego Martin ; herbage by stream." 
Nomada [Micronomada) jamaicensis, sp. n. 
? . Length a little over 6 mm. 
Ferruginons, including the legs, biit the al)domen mainly 
black above ; head Inroad ; basal part of mandibles broadly- 
pale yellow ; sides of iface broadly light yellow, this colour 
ending obtusely a little above level of middle of front, and 
below ending about level of middle of clypeus; labrum 
blackish in middle ; clypeus, supraclypeal area, front and 
cheeks bright ferruginous, the cheeks witli a broad yellow 
stripe along npper part of orbits ; interocellar region 
blackened ; antennae entirely ferruginous, third joint longer 
than fourth ; thorax above densely and coarsely pimctured, 
the ridges between the punctures shining ; npper border of 
prothorax, tubercles, scutellum, band on postscutellum, two 
large patches on metathorax, and very large transverse 
patches on pleura, bright yellow ; mesothorax suffused with 
black in middle posteriorly, and area of metathorax also 
blackish ; the extremely scanty pubescence of thorax light 
fulvous above, white at sides ; tegulae creamy white, punc- 
tured. Wings long, with a conspicuous dusky apical cloud ; 
stigma ferruginous, nervures fuscous ; b. n. meeting t.-m. ; 
second s.m. receiving first r. n. before middle. Legs bright 
red, hind coxae with a large yellow mark, hind tibise slightly 
yellowish at base ; spines of anterior cox£e short, but very- 
distinct. Abdomen very finely punctured : first segment 
with a broad yellow band, narrowest in middle, the part 
before the band dark red ; second segment with a yellow 
band which is extremely Ijroad at sides, but greatly narrowed, 
. or even broken, in middle ; third and fourth segments with 
a large yellow mark on each side, fifth with a band (these 
markings often largely concealed by the retraction of the 
segments) ; apical segment with a semicircular pale pubes- 
cent area ; venter dark ferruginous, with a broad yellow 
band on third segment, 
Records of Bees. 485 
^ . Similar to the female, except as follows : ground- 
colour of head and thorax black, not red ; labrum pale 
reddish ; clypeus and supraclypeal area bright yellow, and 
the bright yellow lateral face-marks wholly filling space 
between clypeus and eye ; yellow band along posterior orbits 
variable, either extending along whole length of orbit or 
broken in middle; basal part of first abdominal segment 
black ; apical plate of abdomen broad, truncate, not 
emarginate. 
Hab. Liguanea Plain, Jamaica, Nov.-Dec. 1911, three of 
each sex (C T. Brius). One was collected by Mrs. Brues. 
The type is a female. 
The genus is new to Jamaica, and the species is closely- 
related to the various Micronomada inhabiting the western 
United States. From the species of Cuba, Haiti, and Porto 
Rico it is readily known by the red head and thorax of the 
female. By the red legs, it resembles N. kriic/ii, Cress., from 
Porto Rico rather than N. cubensis, Cress., from Cuba. 
Halicius [Ckloralictus) hruesi, sp. n. 
^ . — Length about or nearly 5 mm. 
Entirely pale brownish testaceous, including antennae and 
legs ; clypeus prominent; face with fine white hair; eyes 
moderately emarginate within j antennae long, the fiagellum 
thick. AA'ings clear, iridescent, the stigma and nervures 
sepia; head and thorax dullish, abdomen shining; thorax 
with thin white hair. 
The following characters are microscopic : front finely 
and very densely and evenly punctured ; mesothorax micro- 
scopically tessellate, with rather widely separated very 
distinct punctures ; area of metathorax with about twenty 
fine but distinct more or Jess wavy ridges ; punctures of 
abdomen very fine, becoming moderately dense toward 
bases of segments, absent on apices of segments, which are 
transversely striatulate ; first r. n. joining second s.m. a 
little before the beginning of its last fourth; outer nervures 
scarcely at all weakened. 
Hab. Liguanea Plain, Jamaica, Nov.-Dec. 1911, 1 ^ 
(C. T. Brues). 
Easily known by its singular coloration, which made me 
think at first that it might be immature or diseased ; but 
it is perfectly formed in every way, and doubtless normal. 
Many species of Halictus are more or less testaceous, 
or have the abdomen orange or brownish. The present 
insect is perhaps nearest to the Brazil an H. nanus (Smith), 
which, however, has the head and thorax yellowish green. 
486 Mr. T. D. A. CockereW^Bescriptions and 
Hdlicius leichardti, Cockerell. 
The type of H. leichardti is abraded ; H. paracolletinus, 
Ckll., described from fresh specimens, is the same species. 
I arrived at this conclusion after the types had been returned 
to the British Museum, but Messrs. Meade-Waldo and 
Turner have kindly compared the types, and have no doubt 
that the names refer to a single species. 
Megachile liguanensis, sp. n. i 
? . — Length about 9 mm. *' 
Black, with white pubescence (a slight admixture of dark 
hairs on vertex and scutellum) ; legs bright ferruginous, 
hair on inner side of tarsi orange-ferruginous, very bright 
on hind basitarsi ; ventral scopa white, entirely black on 
last two segments ; clypeus densely punctured, with a 
smooth shining median stripe, the lower margin feebly 
denticulate; mandibles quadridentate; flagellum beneath 
dark rufo-f uscous ; vertex dull, densely and minutely punc- 
tured ; mesothorax and scutellum sculptured like vertex ; 
no anterior hair-spots on mesothorax, but a very conspicuous 
tuft of white hair on each side above the hind end of tegula ; 
a rather feeble hair-band in scutello-mesothoracic suture, 
but long white hair behind scutellum. Wings slightly dusky, 
especially in costal region; stigma dull ferruginous, nervures 
fuscous. Abdomen shovel-shaped, but not of the very broad 
type, shining, with narrow and weak white hair-bands ; 
tegulee piceous, obscurely reddish toward the margins. 
Hab. Liguanea Plain, Jamaica, Nov.-Dec. 1911 {Mrs. C. 
T. Brues). 
From the same locality Mr. Brues sent also M. lanata 
(Fabr.), and M. poeyi, Cxuer. In Friese's table of West 
Indian Megachile, this runs to M. deceptrix, Smith, a larger 
and otherwise different insect, the type of which I have 
examined. It may also be compared with M. poeyi, which 
is larger and has yellow abdominal bands, t have not been 
able to find any species from North or South America which 
it closely resembles. 
Megachile huascari, sp. n. 
$ . — Length about or almost 13 mm. 
Robust, broad, black, with black hair, mixed with dull 
white on face around antennae ; ventral scopa light orange, 
last segment with scanty black hairs ; clypeus shining but 
closely punctui'ed, with no median smooth line, its anterior 
I 
Records of Bees. 487 
margin with a tery broadly triangular smooth impunctate 
space, the actual margin, which is straight, deeply trans- 
versely channelled ; antennae entirely black ; vertex finely 
and quite closely punctured ; mesothorax closely punctured 
at sides, but the middle very broadly smooth and shining, 
with widely scattered punctures ; tegulse with reddish 
margins. Wings fuliginous ; spurs ferruginous. 
Hab. Huascaray, Peru, 6500 ft., Sept. 21 (C. H. T. 
Toivnsend). 
Very close to M. piurensis, Ckll,, which is knowil only in 
the male. I was at first disposed to regard it as the female 
of that species, but as the sculpture of the mesothorax is 
entirely different, and the insect comes from a different 
locality, it must be presumed to be distinct. Superficially, 
seen from above, M. huuscari might be taken for a rather 
small example of M. xylocopoides, Sm. The locality is 
evidently named after Huascar, to whom I have accordingly 
dedicated the bee. 
Megachile microsoma, Cockerell, 
Manaos, Brazil {B. Piffard). British Museiim. 
Megachile agustini, Cockerell. 
Abbott Ranch, Rito de los Frijoles, New Mexico, Aug* 
1912 {Cockerell). 
Megachile saiji sancta, subsp. n. 
c? . — Like M. sayi hetei-odonta, but hair of face strongly 
suffused with tawny; wings not reddened (the stigma is 
clear ferruginous), but with a strong dusky apical cloud ; 
middle of mesothorax covered with black hair ; eyes purplish 
black instead of green ; fifth dorsal abdominal segment, 
before the band, with the hair entirely black, long and 
coarse. Legs as in heterodonta. 
Hab. Santa Fe, New Mexico, August 3, 1912 {Cockerell). 
Megachile pugnata, Say. 
$ . — Santa Fe, New Mexico, August 1, 1912, at flowers of 
Hymenoxys floribunda. { Cockerell.) 
Epeolus novomexicanus, sp. n. 
(J. — Length 6 mm. 
Black, with the tubercles, ends of axiliar teeth, and venter 
of abdomen ferruginous ; antennae clear ferruginous, the 
scape blackened above ; legs clear bright ferruginous, the 
4i:^S Mr. T. D. A. Cockerell — Descriptions and i 
spurs of the same colour ; tegulse light apricot-colour ; | 
apical plate of abdomen red^ rounded, entire ; eyes pale ^ 
green ; face_, except lower part, covered with brilliant silver- 
white appressed hair ; clypeus minutely granular-punctate ; \ 
labrum dark, obscurely reddish; mandibles red; hair of I 
cheeks and vertex, and thorax above, slightly tinged with i 
ochreous; mesothorax finely rugose, its hair dense around f 
the margins and in anterior middle, but not forming clean- \ 
cut markings ; pleura densely covered with hair ; axillar I 
teeth broadly triangular, rather sharp. Wings dusky along i 
apical margin. Abdomen with broad entire yellowish-white f 
apical hair-bands, the other parts more thinly hairy ; first ; 
segment densely hairy, except for a straight median band, ^ 
the margins of which are very indistinctly defined ; beneath | 
the hair the bases of the segments become more or less 
reddish, while the apical margins become ivory-white. 
Hab. Santa Fe, New Mexico, Aug. 2, 1912 "(CocArere/Z). 
A pretty little species, best known by the red antennae 
and ill-defined band on first abdominal segment. These 
characters will at once separate it from E. beulahensis, Ckll., 
which is similar in general appearance. There is no distinct 
spot of pubescence on the anterior part of the mesothorax, 
such as is found in E. crucis, Ckll. 
Melissodes mizea, Cockerell. 
? . — Abbott Ranch, Rito de los Frijoles, New Mexico, 
Aug. 1912 {Cockerell). The specimen differs from the type 
in having much more black hair on the legs. 
Andrena nieJlea, Cresson. 
$ .—Abbott Ranch, Rito de los Frijoles, New Mexico, 
Aug. 1912 (Cockerell). 
Prosopis aposuara, Cockerell. 
^.— Stradbroke Island, Oct. 2, 1911 {H. Hacker); 
Queensland Museum, dO. Gilgai, N.S.W., Dec. 1911 
[Frogyatt, 212). 
Meroglossa persulcata, Cockerell. 
^ . — Brisbane, April 26, 1911 (Queensland Museum, 67). 
PalcEorhiza perviridis (Cockerell). 
5 . — Kuranda (F. P. Dodd) ; Queensland Museum, 68. 
Records of Bees. 489 
Gnathoprosopis hackeri, sp. n. 
^ . — Length a little over 7 mm. 
Robust, black ; mandibles broad and short, black ; head 
rather broad ; face below antennae entirely smooth and 
shining pale yellow, with very sparse punctnres ; supra- 
clypeal area broad, pale yellow ; lateral marks ending in a 
point near orbital margin at about level of middle of front; 
scape scarcely swollen, pale yellow in front; flagellum short 
and thick, ferruginous beneath ; swollen upper border of 
prothorax and tubercles bright chrome-yellow ; rest of tliorax 
entirely dark ; mesothorax closely and finely punctured ; 
area of metathoi'ax coarsely and very irregularly cancellate, 
posteriorly with a transverse keel. Legs brownish black, the 
anterior tibise in front, a stripe on middle tibiae, and base of 
hind tibiae yellow ; tarsi reddened apically ; tegulae piceous. 
Wings hyaline, stigma and nervures dark ; first r. n. entering 
apical end of first s.m., which is very long. Abdomen broad, 
shining, but finely and closely punctured, with conspicuous 
erect hair, which is greyish white except apically, where it is 
dark fuscous ; ventral teeth extremely large, conical, with no 
ridge between them. 
Hab. Sunnybank, Brisbane, Queensland, Jan. 17, 1912 
(//. Hacker). Queensland Museum, 36. 
Nearest to G. bituberctilata (Smith), but easily separated 
by the light yellow face and the relatively slender scape. 
The type of this genus will be known as Gnathoprosopis 
euxantha (CklL), the name xanthopoda being preoccupied, 
Prosopis kelvini, sp. n. 
? . — Length nearly 8 mm. 
Black ; rather robust ; head rather elongate ; face- 
markings reduced to an elongate-oval yellow spot on each 
side, its upper end level with antennae ; cheeks small ; face 
finely longitudinally striate, the high and narrow clypeus 
with a fine median longitudinal keel ; mesothorax and 
scutellum very finely but distinctly punctured; the swollen 
upper border of prothorax and tubercles bright chrome- 
yellow ; no other yellow on thorax ; postscutellum with fine 
short light pubescence, especially anteriorly ; area of meta- 
thorax with the basal part very irregularly cancellate, no 
transverse keel. Legs black ; autei'ior tibiae with an obscure 
reddish spot in front near base ; anterior and middle femora 
short and broad ; tegulae piceous. Wings clear, stigma and 
490 Mr. T. D. A. Cockerell — Descriptions and 
nervnres dark ; second s,m. long, receiving both recurrent 
nervures. Abdomen very finely punctured, scarcely at all 
hairy. 
Hab. Kelvin Grove, Brisbane, Queensland, Nov. 20, 1911 
{H. Hacker). Queensland Museum, 33. 
Runs in my table of Prosopis to the vicinity of P. amicula, 
from which it is easily known by the reduced face-markings. 
It resembles in its markings P. flavojugata, CklL, but that 
species has a much shorter head, the yellow spots on the 
face lower down, and the quadrate second submarginal cell 
entirely different from that of kelvini. In P. amicula also 
this cell is very much shorter than in kelvini. The second 
s.ra. of kelvitii is formed much as in P. alcyonea (Erichs.), 
which is in other respects a totally different insect. 
Prosopis leai, sp. n. 
(J . — Length about 65 mm. 
Rather slender ; the abdomen subclavate, narrowed 
basally; black, with yellosv markings; head moderately 
elongate, face below antennse yellow (reddened by cyanide in 
type), the very broad supraclypeal mark obtusely rounded or 
subtruncate above, the lateral marks ending abruptly at 
level of antennae, the lower margin of clypeus dark ; scape 
with a yellowish mark in front ; flagellum long, ferruginous 
beneath ; the large tubercles, scutellum, and postscutellum, 
with a small elongate mark touching each anterior corner of 
scutellum, very bright chrome-yellow ; no other yellow on 
thorax ; mesothorax dull, the dense punctures so minute as 
to give tlie effect of a minutely granular surface ; area of 
metathorax shining, without distinct sculpture. Legs black ; 
anterior tibiae ferruginous in front ; tegulae piceous. Wings 
dusky at apex ; nervures and stigma dark ; first r. n. joining 
first t.-c. ; second s.m. longer below than high, but not much 
elongated. Abdomen dull, scarcely hairy ; venter normal. 
Hab. National Park, New South Wales [Lea, 10716). 
Froggatt Coll. 143. 
Best compared with P. chrysognatJia, Ckll., and P. apo- 
suara, Ckll., from both of which it differs by the much finer 
sculpture of the mesothorax. The broad supraclypeal area 
also separates it at once from P. aposuara. The second 
submarginal cell is shorter than in chrysognatha. 
\ 
Records of Bees, 491 
Nomia lyonsia, sp. n. 
$ . — Length nearly 11 mm. 
Black ; the first four abdominal segments with moderately 
broad emerald-green bands suffused with vermilion ; scu- 
tellum depressed in middle, but not bituberculate ; post- 
seutellum with a pair of large lamellae or teeth ; clypeus with 
a fine keel. Wings dusky hyaline. 
So exactly like the Indian N. elHoti, Smith, that it is 
difficult to point out many differences. The postscutellar 
teeth are larger than in ellioti, and the punctures of the 
mesothorax are smaller and evidently of two sizes. The 
abdomen is more strongly and closely punctured, especially 
on the second segment. The antennae are dark, with the 
flagellum faintly reddish beneath toward the apex. 
Hab. Brisbane, Queensland, at flowers of Lyonsia (Apor 
cynaceae), Feb. 6, 1912 (//. Hacker). Queensland Museum, 
60. 
It seems not altogether impossible that this is the female 
of N. darivinorum, Ckll., described from Port Darwin. The 
localities, however, are about 1800 miles apart, and probably 
the species are distinct. N. lyonsia agrees structurally with 
N. rubroviridis, Ckll., but differs by the black hair covering 
apex of abdomen, partly black hair on thorax above, rather 
large punctures of mesothorax, and only moderately broac^ 
abdominal bands. 
Gastropsis pubescens (Smith) . 
Brisbane, Queensland, Nov. 27, 1911 {H. Hacker). 
Queensland Museum, 54. 
Dioxys aurifuscus (Titus). 
Dioocys fulvohirta, Ducke, from Durango, Colorado, is 
apparently a synonym. Titus described, his species in a 
distinct genus {Chrysopheon), and it was overlooked by 
Ducke. 
Xylocopa varians, var. piurensis, v. nov. 
? . — Like var. incarum, Ckll., but hair on outer side of 
middle and hind basitarsi and. end of hind tibiae shining 
cream-colour; herein it resembles var. ecuadorica, Ckll., but 
it differs from that in having the hair on inner side of tarsi 
(especially hind tarsi) bright ferruginous. 
492 Mr. T. D. A. Cockerell — Descriptions and 
Hah. Piura, Peru (C. H, T. Townsend). 
The varieties or races of X. varians may be separated 
thus : — 
Tegulaj red ; hair on inner side of hind tarsi black. 
(S, Brazil.) varians, Sm. 
Tegulse black 1. 
1. Hair on hind tarsi all red. (Peru.) incarum, Ckll. 
Hair on outer side of hind tarsi cream-colour .... 2. 
2. Hair on inner side of hind tarsi black. (Ecuador.) ecuadorica, (^kW. 
Hair on inner side of hind tarsi red. (Peru.) .... 2^iurensis, Ckll. 
Xylocopa splendidida charapensis, subsp. n. 
$ . — Agrees with X. splendidula, Lep. (jMendoza specimen 
compared), except that the abdomen is more closely punc- 
tured and the hair on outer side of liind basitarsi (except at 
apex) is brilliant orange-ferruginous, while the middle basi- 
tarsi have a band of hair of the same colour. 
Hab. Rio Charape, Peru, 5000 feet, Sept. 12-16 (C. H. T. 
Townsend). 
Xylocopa brasilianorum (L.). 
(?.— Cosma, Peru, April 6, 1912 (C. H. T. Townsend). 
The yellow clypeus has a large diamond-shaped black 
mark, produced above to the margin, which is narrowly 
black-edged. 
Trigona nigerrima, Cresson. 
Rio Charape, Peru, 5000 feet, Sept. 12-16 (C. H. T. 
Townsend) . 
I cannot separate this from Guatemalan specimens. The 
species is new to Peru. 
Bombus vogti, Friese. 
A worker from Huascaray, Peru, 6500 feet, Sept. 21, 
1911 (C. H. T. Townsend), agrees with Friese's brief 
description. 
Bombus butteli, Friese. 
Huascaray, Peru, 6500 feet, Sept. 21, 1911, workers and 
males (C. H. T. Townsend). 
A peculiar species, apparently nearest to B. funebris, 
Smith, which also occurs in Peru. 
Records of Bees. 493 
Nomia mesillensis, Cockerell. 
At Santa Fe, New Mexico, in the first week of August, 
1912, I took a good seiies of Nomia at flowers of Peritoma 
serrulatum. To my surprise I find that the females are all 
N. mesillensis, while the males are those ascribed by me 
(Ann. & Mag, Nat. Hist., Oct. 1908, p. 333) to N.foxii. 
Fox described his punctata [foxii, D. T.) from the female, 
and the ''distinctly punctured" abdomen clearly indicates 
the female I hfive called foxii rather than mesillensis. This 
female (from Las Cruces and Rincon, New Mexico) is, 
however, evidently the recently published A'^. mcctczumfp, 
Crawford, which must, I think, be a synonym of N.foxii. 
The matter will be settled by the e.^amiuation of the type of 
foxii, from Vega, S. Jose, N. M, 
Nomia nevadensis, Cressoii. 
Santa Fe, New Mexico, Aug. 3, 1912 (Cockerell), 
Nomia savignyi, Kohl. 
Multan, India, Sept. 1909 {E. Comber). British Museiim. 
Nomia comperta, sp. n, 
(J.— Length 10^ mm. 
Black, with approximately the basal half of abdomen red ; 
head broad ; mandibles with a small rufous spot beyond 
middle; face densely covered with shining creamy-tmted 
hair ; vertex shining, with very large, scattered, irregularly 
placed punctures ; autennse long, flagellum crenulate, dull 
red beneath ; thorax brilliantly shining, the mesothorax and 
scutellum with scattered strong punctures ; area of meta- 
thorax shining, with a minutely granular surface, but no 
ridges, its lateral extensions with a rather strong sulcus 
running down the middle ; hair of thorax thin aiid long, 
white, very faintly creamy-tinted dorsally. Legs shining 
brown-black, with pale hair ; hind coxse with a small apical 
tubercle posteriorly; hind femora slightly swollen; hind 
tibiae and tarsi normal ; spurs very pale reddish ; tegulie 
brown, with the margin hyaline, not enlarged. Winos 
hyaline basaljy, dilute reddish-fuliginous apically; stigma 
pale orange-testaceous, nervures testaceous ; second s.m. 
approximately square, receiving first r.n. a littje beyond 
middle. Abdomen dullish sericeous, the hind margins of 
the segments shining; first segment with the basal half 
blackish, with an interrupted red band, the apical part clear 
Ann. (& Mag. N. Hist. ►Ser. S. Vol. x, 34 
494 Mr. C. T. Regan — A Revision 
red (orange-ferruginous) ; second segment entirely clear red ; 
third red, with a large, siiflFused, dusky, dorsal shade ; 
remaining segments black ; third and following segments 
with apical bands of white tomentum, such bands also at 
sides of second; hair at apex of abdomen white; fourth 
ventral with a prominent median apical lobe. 
Hub. Nasik, India [E. Comber). BritiNh ]\Iusenra. 
Runs in Bingham's table to N. pilipes, Smith, but the 
colour of the pubescence and wings is so different that it 
cannot be the male of that species. There is a striking 
superficial resemblance to N. phenacura, Ckll., also found at 
Nasik, but the sculpture of the thorax is entirely different, 
especially that of the metathoracic area. 
LXI. — A Revision of the Pceci/iid Fishes of the Genera 
Rivulus, Pterolebias, and Cvnolebias. Bv 0. Tate Regan, 
M.A. 
(Publislied by permission of the Trustees of the British Museum.) 
The three closely related genera here dealt with are the 
neotropical Fundulinse *. In them the snout is short, the 
margin of the eyes is not free, and the gill-membi'anes are 
separate. The mouth is ratiicr wide and transverse, with 
the prremaxillaries protractile, but not produced, and the 
lower jaw^ prominent and very oblique ; the teeth are sub- 
conical, in bands, with an outer series of enlarged and 
spaced teetii, more or less canine-like, a lateral pair in the 
lower jaw being usually the strongest. The membrane 
connecting the praemaxiliary with the lower jaw folds when 
the mouth is closed so as to fit into the right angle formed 
bv the very narrow vertical preeorbital and the horizontal 
nasal. The pectorals are placed low and the pelvics are not 
far in advance of the anal. 
I give a list of the specimens in the British Museum 
collection, including the types of four species now described 
as new. Two of these, Rivulus strigatus from the Amazon 
and Cynolebias nigripinnis from the La Plata, have been 
* Except that a few species of the nearctic genus Fwidulus occur in 
Central America. 
I take this opportunity of proposing the new generic name Peta- 
lurichihys, to replace Petalosoma, Regan, 1908, as Mr. C. O. Waterhouse 
has kindly called my atteution to tlie fact that this is preoccupied in 
Coleoptera (Lewis, Ann. & Mag. Nat. Hist. (7) xii. 1903, p. 418;. There 
are two species of this neotropical Pceciliid genus, viz. Petalurichthjs 
cidtrutus, Kegan, 1908, and P. umazonmn, Regan, 1911.