CONSPECTUS OF MOTHS. 41 
ORGYIA (OcHSENHEIMER). 
Toe VAPOURER (Orgyia antiqua, OCHSENHRIMER) appears 
from July to October, Wings, none in the female, one inch 
two-sixths to one-half in the male, rust-brown; first pair 
clouded with brown, with a very white crescent near the pos- 
terior angle; second pair paler and spotless. Caterpillar, dusky 
spotted with red, with four white tufts on the back; feeds on 
white and black thorn, and various other trees. Pupa dingy 
and yellow. Common near London. 
Tue ORANGE Tussock (0. Gonostigma, OcHSENHEIMER) ap- 
pears from June till the end of August. Wings, none in the 
female, one inch one-fourth to seven-twelfths in the male, 
brown ; first pair with two opposite white spots, one in the pos- 
terior angle, and the other at the thicker margin. Caterpillar, 
gregarious, with eight white tufts on the back, with two black 
gnes on the neck and one on the tail; feeds on a variety of 
plants. Ppa yellow, posteriorly yellow. Scarce. Oxfordshire, 
Kent, and Surrey. 
LALIA (STEPHENS). 
THE WHITTLESEA Ermine (Lelia Canosa, STEPHENS) appears 
in July. Wings of the male one inch seven-twelfths to three- 
fourths, female one inch one-half to three-fourths, pale yellow- 
ish-brown ; first pair, the hinder margin with a row of in- 
distinct dingy spots; female white, with the legs and palpi 
yellow. Caterpillar, dingy, spotted with yellow, with four 
yellow tufts on the back, two dark ones on the head, and 
one on the tail; feeds on burr-reed. Pupa deep black, enclosed 
ina spindle-shaped cocoon. Local. Whittlesea-Mere. 
LEUCOMA (StrprHeEns)- 
Tar BLack V. (Leucoma Vau-nigra, SterHENS) appears in 
August. Wings of the male one inch three-fourths, female one 
inch five-sixths, snow-white, with the nervures slightly yellowish, 
and a small black V. in the centre of the first pair. Caterpillar, 
with eight tufts on the back, of which the two first and last 
are white; feeds on the lime. Pupa greenish blue, with a 
black spot on the corselet. Rare. Kent. 
Tae SATIN (L. Salicis, SrerpHENS) appears inJuly. Wings of 
the male one inch one-half to five-sixths, female one inch five- 
sixths to two inches, of a rich glossy white; the antenne with 
black plumelets, and the legs with black rings. Caterpillar, 
hairy, blackish, spotted with red, with a row of white spots on 
the back; feeds on willows and poplars. Pupa hairy, dusky, en- 
Closedin a cocoon. Very common. Middlesex, Kent, and Surrey. 
PORTHESIA (SrEerHeEns). 
Tue Goup Tarr (Porthesia Chrysorrheaa, STEPHENS) appears 
the end of July and beginning of August. Wings of the male 
one inch one-fourth to seven-twelfths, female one inch seyen- 
twelfths to five sixths, snow-white, with a dark spot at the pos- 
terior angle of the first pair; the plumelets of the antennee dusky 
yellow, Caterpillar, gregavious, hairy, blackish, with two red 
