24 Mr. T. D. A. Cockerell on 
26. Pieris Josephina. 
Pieris Josephina, Godart, Euc. M6th. ix. p. 158 (1819) ; lliibner, 
Samml. exot. Schmett. ii. pi. cxxvi. (1819-86). 
Male and female, St. Domingo, and male, Mexico. B. M. 
Mr. Heron and I have compared our specimens with 
Godart's types, now in the Edinburgh Museum. 
IV.— Some new Coccidje. By T. D. A. Cockerell, 
Entomologist of the New Mexico Agricultural Experiment 
Station. 
Pulvinaria ephedra?, sp. n. 
Mature female about 5 millim. long, with a snow-white 
ovisac 11 millim. long and 4 broad. 
Body of female quite soft, not at all chitinous, raspberry- 
pink in front, greenish on dorsum, with some minute black 
specks. The front part of the female is covered by a thick 
square patch, 2 millim. broad, of white secretion ; the hind 
margin is also fringed with secretion, and the body has irre- 
gular patches, arranged in three longitudinal bands, of which 
the middle is the narrowest and most definite. Ovisac firm, 
not adhering to objects which may chance to touch it, ribless. 
Eggs greenish yellow. 
$ . — When boiled in caustic potash turns the liquid pink. 
Mounted on a slide, 6 millim. long and 4^ broad ; legs and 
antennas brown. Antenna? 8-segmented, 1 at least twice as 
broad as long ; formula 3425168 7. The several segments 
of an antenna were found to measure as follows in fifi : — 
(1) 62, (2) 70, (3) 112, (4) 81, (5) 67, (6) 56, (7) 36, (8) 47. 
Legs ordinary, tarsus about half length of tibia ; claw- 
digitules rather stout, extending beyond tip of claw ; tarsal 
digitules slender. Margin with very numerous sharp spines, 
placed closer together than the length of one. Anal plates 
yellowish brown. 
llab. On Ephedra, Mesilla Park, New Mexico, a short 
distance east of the Agricultural College, in the Larrea zone, 
May 1898. 
A very beautiful and distinct species, superficially rather 
resembling Icerya Rileyi, which occurs in the same locality 
on Larrea. The characters italicized in the description are of 
subgeneric value, and P. ephedrce may be regarded as the 
type of a new subgenus — Philephedra. 
some new Coccidse. 25 
Aspidiotus yuccarum, sp. n. 
? . — Scale circular to suboval, about 2| millim. diam., 
slightly convex, dark brown, rough and concentrically 
wrinkled, blackish towards the middle ; but the central part, 
covering the exuvise, covered by a large round patch of white 
secretion ; when this is rubbed off, the exuviae are exposed, 
shining black, subcentral. There is a thick ventral scale. 
Young female scales appear entirely white, or, when rubbed, 
white with a black spot. 
$ .—Scale elongate, brown, with the exuvia at one end 
covered by white secretion. 
? . — Caudal region brownish ; three pairs of lobes, these 
short, yellowish brown, notched at the end, with glandular 
processes at their bases much as in Diaspidiotus ; the middle 
lobes especially remind one of human premolar teeth, fangs 
and all. Middle lobes a short distance apart, second separated 
by a similar distance from the first, third separated from the 
second by an interval about as great as the width of the 
former ; margin beyond the third minutely crenulate, with a 
protuberance representing a rudimentary fourth lobe some- 
what further from the third than the third is from the first. 
Spines very minute. No spine-like or other plates. No 
grouped ventral glands, but many small round or slightly 
elongate dorsal glands. Anal orifice a long distance from the 
hind end. Antennas represented by a small tubercle bearing 
a single bristle. 
Rah. At bases of leaves of Yucca elata, associated with 
JJactylopius dasylirii, Ckll. (for which the Yucca is a new 
food-plant), Mesilla Park, a short distance east of the Agri- 
cultural College, at the beginning of the Larrea zone, May 
1898. 
This very distinct species belongs to an unnamed section 
of the genus, allied to Diaspidiotus, containing A . yuccarum, 
Ckll., A. yuccce, Ckll., and A. bigelovios, Ckll. These species 
agree in having black exuvige, no plates (gland-hairs), and no 
grouped ventral glands. A. yuccce was described from 
Mexico; but on May 19, 1898, Prof. C. H. T. Townsend 
found it at the bases of leaves of Yucca elata in the Mesilla 
Valley, New Mexico. This new find shows that the small 
size of the insect is in no way due to immaturity, for speci- 
mens of the size of the original types are full of eggs. The 
living female of yuccw is dull lilac, and it turns bright lemon- 
yellow in liquor potassas. What I called the spine-like plates 
in the original description are the true spines; they are much 
larger than those of yuccarum. The Mesilla- Valley form of 
26 Mr. T. D. A. Cockerell on 
yuccce is constantly different from the type by the considerably 
more produced median lobes ; at some future time Prof. Towns- 
end will probably give it a varietal name. 
Aspidiotus (Chrysomphalus) Iilacinus, sp. n. 
? . — Scale light grey, the colour of the bark on which it 
rests, about 1 millim. diam. ; immature scales show a white 
dot and ring; old scales when rubbed show jet-black exuviae. 
? . — When living dull lilac, becomes bright green in caustic 
potash, and the eyes of the embryonic larvas a rich dark blue. 
No grouped ventral glands. Four pairs of lobes. 
Hab. On bark of oak (a species of the Quercus undidata 
group), Dripping Spring, Organ Mts., New Mexico, April 23, 
1898. It is parasitized by a species of Signiphora. 
A. Iilacinus resembles A. obscurus, but the scales are 
smaller, the glandular processes at the bases of the lobes are 
longer, there are no circumgenital glands, and the fourth lobe 
is broad and serrulate. The anal orifice is a considerable 
distance from the hind end, as in obscurus, not close to it, as 
in tenebricosus, nor is the scale convex like that of tenebri- 
cosus. A. Iilacinus has four pairs of lobes and long slender 
glandular processes, quite after the manner of the Mexican 
A. calurus; but the shape of the female is ordinary, not as 
in calurus, the median lobes are entire instead of notched, and 
the second lobes are only once feebly notched. The third 
lobes are minutely serrate, with four notches, and the fourth 
are serrate in the same manner. There are three little pro- 
minences beyond the fourth lobe as in calurus. 
Melanaspis must be regarded as a section of the subgenus 
Chrysomphalus, and extended to include A. tenebricosus, 
Comst., A. calurus, Ckll., and A. Iilacinus, Ckll. It is to be 
remarked that tenebricosus &c. in their longer glandular pro- 
cesses and absence of circumgenital glands resemble the 
penultimate stage of typical Melanaspis. 
I have a new locality to record for A. calurus, namely 
Oaxaca, Mexico, whei-e it was found by Mr. A. Koebele on a 
milky plant, Aug. 22, 1897. 
I wish to draw attention to a curious pigment found in 
various Coccida?, mentioned above in the description of 
A. Iilacinus. It is of a dull lilac-colour, but when placed in 
liquor potassEe immediately becomes light green. My Parla- 
toria lheo3, var. viridis, was named from this green colour; 
but Mr. Alex. Craw lately sent me fresh specimens on stems 
of " Ilex pedunculata " (doubtless an error for I. pedunculosa, 
Miq.) from Japan, and I found that the female was of a 
curious purple colour, except the mouth-parts and lobes (of 
some new Coceidae. 27 
fringe), which were yellowish brown. Directly these insects 
were placed in liquor potassae they turned green. 
Aspidiotus transparens, Green, subsp. simillimus, nov. 
? . — Scale white, a little transparent, diam. 1| millim., 
flat, circular to suboval ; exuviae central, very light yellow, 
sometimes more or less covered with white secretion. 
£ . — Scale oval, ordinary ; exuviae whiter than in the 
female. 
? . — After boiling yellow; transparent and colourless if 
the contents are lost ; median lobes remaining yellowish, but 
hardly darker than the others. Three pairs of well-developed 
lobes, of the nerii type ; median feebly notched on inner and 
distinctly on outer side ; second narrower and practically 
entire; third smaller and notched on outer side. The median 
lobes always extend a little beyond the plane of the tips of the 
second, this plane being about on a level with the outer notch 
on median lobes. Squames as in the nerii group, extending 
beyond the tips of the lobes, those beyond the third lobe 
about twice its length. Six or seven long pointed squames, 
ramose on outer side, beyond the third lobe ; a short distance 
cephalad of the furthest squame is a spine. Anal orifice a 
little nearer the caudolateral groups of glands than to the 
hind end. Transverse pores numerous, belonging to glands 
of the cylindrical type, as in nerii &c. ; there are over 25 
well-formed transverse pores on each side of the median line. 
Caudal region striated. Four groups of circum genital glands, 
caudolaterals 7 to 9, cephalolaterals 8 to 15. 
Hab. On a palm from Sydney, Australia, found by 
Mr. Alex. Craw, Dec. 1897, in the course of his horticultural 
quarantine work at San Francisco. 
The scale of this insect resembles that of A. destructor and 
transparens. The female differs at once from destructor by 
the longer median lobes ; from transparens it differs by the 
more numerous glands in the circumgenital groups, and 
especially in the much longer squames beyond the third lobe. 
Compared with some A. transparens on Dalbergia from 
Ceylon, sent by Mr. Green, the scales of simillimus are more 
opaque and less wrinkled. The scale of simillimus at once 
differs from nerii, which has smaller pale orange exuviae; it 
resembles more closely the hedera? form of nerii than the 
scales found on oleander. The scale and exuviae of simillimus 
are too small for Jimbriatus, of which 1 have authentic material 
from Mr. Maskell. 
Mesilla Park, New Mexico, U.S.A., 
May 19, 1898.