Article beginning on page 275.
Psyche 6:275, 1891.

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June 1893.1
PSYCHE.
AN APORIA BRED FROM LIMACODES SP.
BY C. H. TYLER TOWNSEND, LAS CRUCES, N. MEX. The Tachinid described below occurs
in a lot of Tachinidae sent me by Pro-
fessor Comstock, from Ithaca, N. Y.
Aside from the knowledge of its para-
sitism, it is of peculiar interest as be- longing to the genus Aporia, hitherto
recorded only from South America.
This genus differs from Exorista, to
which it is nearly allied, by the frontal bristles not descending below base of
antennae, and the antennae being in-
serted below a line drawn through the
middle of the eyes. The third antennal
joint is also considerably narrowed, and the whole body is very bristly.
A$oria limacodis n. sp. $å Eyes cin-
namon brown, thickly pubescent ; front
very narrow, about as wide as one of
the antennal joints on posterior half, grad- ually widening before; frontal vitta nearly obsolete behind, wide and triangular in front, velvet brown ; frontal bristles moderately strong and all directed forward, absent just before ocelli, ocellar and vertical bristles hardly to be distinguished, all directed for- ward, no orbital bristles; sides of front, face and cheeks silvery white, the cheeks hardly one-third eye-hight and with a few bridtles on lower portion, sides of face narrow and bare ; vibrissae decussate and inserted on oral margin, facial ridges bare except several bristles next vibrissae; antennae and arista black, first two antennal joints and base of third rufous; proboscis short, fleshy, brown- ish, labella large and tawny; palpi not large, rufous, bristly, a little enlarged apically; occiput silvery, clothed with gray hairs. Thorax wider than head or abdomen, shin- ing black, rather thinly silvery white polli- nose, with four black vittae, the outer ones interrupted at suture, humeri and pleurae more distinctly silvery white pollinose; scu- tellum black, silvery, with an apical decus- sate pair of macrochaetae and two lateral ones, the posterior lateral ones strongest. Abdomen narrower than thorax, long coni-. cal, very bristly and hairy, shining black, basal half or more of segments two to four silvery white pollinose, first segment silvery beneath and faintly so on sides above; first segment with a strong lateral macrochaeta- and a median marginal pair; second with a median discal pair and a marginal row of six: or eight; third with a median discal pair an& a marginal row of ten; anal beset with ma- crochaetae except at base, second and third segments with median anterior and sub-
marginal pairs of macrochaeta-like bristles. Legs rather long, blackish, front femora sil- very white pollinose on outside, tibiae pale brownish rufous, bristly, claws and pulvilli elongate, pulvilli smoky yellowish. Wings longer than abdomen, rather hyaline, some- what grayish, no stump or wrinkle at bend of fourth vein, tegulae nearly white, halteres tawny.
Length of body, 9.5 mm. ; of wing, 8 mm. ' Described from one specimen ; Ith--
aca, N. Y. Bred by Professor J. H.
Comstock from Limacodes sp. Issued
May 30.
A female which may belong to this
species was also sent me by Professor
Comstock ; it was collected June 28 by
Mr. S. H. Crossman, and differs as.
follows :
More generally silvery white pollinose;.



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[June 1892.
front one-fourth width of head, of equal like bristles, which latter are very much width, frontal bristles stronger, two orbital weaker; claws and pulvilli only a little elon- bristles directed strongly forward; third an- gate. Abdomen less conical and nearly as tennal joint not so narrowed, palpi and labella wide as thorax. more yellow. Macrochaetae of abdomen Length of body, nearly 7 mm.; of wing, more differentiated from the macrochaeta- 6 mm. THE EARLY STAGES OF NERICE BIDENTATA.
BY CAROLINE G. SOULE, BROOKLINE, MASS.
The egg, found on the under side of an
elm leaf, Aug. 9, 1891, was hemispherical, the flat side being attached to the leaf. It was greenish yellow with a whitish bloom over it, and was very like the egg of Nadata gibbosa. It hatched on Aug. 13th.
The young larva was & inch long, of a
deep green color, and with sparse hairs. Head brown, lighter on the median suture. The fifth segment' had a dorsal and sub- stigmatal spot of shining brown, and the 11th segment had a dorsal spot of the same color. The feet and props were shining
brown in color. Anal props were very
slender and were raised when the larva
walked. The body, at rest, was arched
between the feet and abdominal props, and between the abdominal and anal props.
Aug. 16. ist moult. Length 4 inch.
Head large, almost round, bilobed, pale
olive green with dark green face-lines.
Body pale glassy green, darker on the dor- sum. The glassy effect was striking. 5th segment had a large brown double tubercle on the dorsum, and a substigmatal, smaller one on each side. The tenth segment had
a substigmatal brown patch on each side, and the 11th a brown single tubercle or
hump, on the dorsal line. Feet brown.
Anal props striped with brown ; abdorni- nal props brown. Very short, sparse hairs all over the body. Head very smooth.
Body arched when at rest, as before.
Aug. 20. 2nd moult, f inch long. Head
much larger than 1st segment, clear green, glassy, with brown face-lines. Body glassy green, translucent, with very few hairs; a faint white lateral line, and a brown, broken substigmatal line appeared ; the brown sub- stigmata1 patches on 5th and 10th segments were as before. 5th segment had a large
double hump, tipped with brown, 11th had the large single hump as before; 4th and 6th had each a double wart on dorsum.
Feet brown and shining. Props pale brown banded with dark brown. Anal props
slender. Rested arched as before. Ate the leaf from the edge to the mid-rib at the tip, and rested on the bared mid-rib. Aug. 21. The marks had grown clearer and each
segment from 6th to 10th showed a small
brown-tipped wart on the dorsal line, and from each wart a white oblique line ex-
tended downward and backward, on each
side. On the first 3 segments a white sub- dorsal line appeared. The effect of the dor- sal line was that of the edge of a serrate leaf. Aug. 23. 3d moult. !$ in. long. Head
large, round, bilobed, smooth, green with dark face lines. Body green, with a broken, brown substigmatal line edged above with yellow, and a double yellow stigmata1 line. First three segments had a double white sub- dorsal line. 4th segment had a double dor- sal hump, tipped with brown; sth, a much larger double hump, yellow green, tipped with brown, the brown extending down the front and back like a dorsal line lifted by the hump ! 6th to loth segments had simi- lar humps, but smaller, like that on 4th. nth segment had a large single hump with brown tip. From all these humps extended oblique white patches. Feet green with a dark, vertical line. Props pale brown




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