CONSPECTUS OF MOTHS. 57 
SEMIOPHORA (Sternens). 
Tae Hesrew (S. gothica, Srepnens) appears the middle of 
April. Wings one inch one-fourth to seven-twelfths ; first pair 
greyish brown, with an arched black spot and square black line 
in the middle; the pale margins of the stigmata are only visible. 
Caterpillar pale green, yellowish on the back, with a white line 
and few dusky specks on the side; feeds on oak, honeysuckle, 
woodbine, &c. Not scarce. Essex, Middlesex, Kent, Surrey, 
and Shropshire. 
ORTHOSIA (OcHsENHEIMER), 
Tue CLoupED Dra (Or. instabilis, OcuSENHEIMER) appears 
the beginning of April. Wings one inch five-twelfths to two- 
thirds, greyish brown, or ashy clouded with grey, with a central 
rusty-brown band, the ordinary stigmata margined with pale 
ash, and the streak at the hinder margin simple and whitish. 
Caterpillar green, with a white line on the back and a yellow 
one on the sides; feeds on the oak. Plentiful. Essex and 
Surrey. 
Tue‘ INTERMEDIATE (0. intermedia, STEPHENS). Wings one 
inch one-sixth to seven-twelfths, greyish brown; first pair with 
three equidistant darker bands, two rings, and the ordinary stig- 
mata pale, and a double streak on the hinder margin; the 
antenne of the male strongly pectinated. Rare, Surrey. 
Tue LEADEN DRAB (0. gracilis, OcHSENHEIMER) appears the 
beginning of April. Wings one inch one-half to seven-twelfths, 
lead colour, and clouded with grey; first pair with an indistinct 
streak towards the hinder margin, and several greyish spots 
margined with pale; second pair dusky, Caterpillar green, the 
sides yellowish, with a black spot and four obscure dots on each 
ring, which is yellow; feeds on the oak, willow, bramble, &c. ; 
wianges to a pupa in July. Rather searce. Essex, Kent, and 
urrey. 
Tue Twin Sror Dras (0. munda, OcusENHEIMER) appears 
in April. Wings one inch seven-twelfths to two-thirds; first 
pair ashy grey, somewhat clouded, with a pale streak at the 
hinder margin, having two or three twin spots. Caterpillar 
varied with black and grey, with a red line on the sides ; feeds 
on the oak, elm, sloe, and fruit trees, and about June changes to 
apupa. Rare. Essex and Surrey. 
Tut PowperED QuAKER (0. sparsa, Curtis) appears the 
beginning and end of April. Wings one inch seyen-twelfths to 
two-thirds, ashy grey; first pair with very minute dusky dots; 
behind the stigmata is an arched series of black spots, and to- 
wards the hinder margin a dusky streak margined with whitish. 
Caterpillar green, with a pale stripe on the back and sides; feeds 
On the tops of willows, and changes toa pupain July. Rather 
uncommon. Essex, Hertford, Kent, and Surrey. 
Tue Pare QuaKER (0. pallidu, Curtis). Wings one inch 
five-twelfths to one-half, uniformly of a pale reddish brown; 
first pair, the ordinary stigmata have only a very slender pale 
