CONSPECTUS OF MOTHS. 83 
Tur YELLOW-HORNED (C. flavicornis, STEPHENS) appears the 
end of February, or beginning of March. Wings one inch one- 
half to seven-twelfths ; first pair ash-coloured, with three black 
streaks; second pair brownish-ash, with the margin and a streak 
behind the middle dusky, antennz yellow. Caterpillar, yellowish- 
green, speckled with black, with a pale white line on the sides, 
and two large eye-like spots; head brown; feeds on the bireh, 
poplar, and oak, Rare. Kent and Surrey. 
Tur Frostep Green (C. ridens, SrepHeNns) appears the be- 
ginning or middle of April. Wings one inch five-twelfths to 
one half; first pair varied with green, brown, and white, with a 
whitish distinct large spot at the base, and two waved whitish 
streaks, having small white lines and black crescents towards 
the tip; second pair white, with the nervures towards the tip, 
and the hinder margin dusky ; antennz yellowish. Caterpillar, 
yellowish green, with a whitish stripe anteriorly on the back, 
some black dots on the sides; legs brown; head red; feeds on 
the oak. Rare. Kent and Surrey. 
TETHEA (OcHSENHEIMER). 
Tue Onive (7. subtusa, OCHSENHEIMER.) Wings one inch 
one-twelfth to one-quarter; first pair olive-brown; the three 
stigmata olive colour with yellow borders, and four yellowish 
streaks; second pair dusky, with pale ashy fringe. Caterpillar, 
whitish green, with pale stripes and small white spots ; the head 
black and forehead white; feeds on the poplar. Scarce. Essex, 
Kent, and Surrey. 
Tue Gonp Tonaur ( T. retusa, OcHSENHEIMER) appears the 
end of July. Wings one inch to one inch one-twelfth ; first pair 
grey brown, with four paler streaks edged with white; the first 
and hinder stigmata ear-shaped, olive, with a pale border ; the 
third stigma very indistinct, the fringe chestnut brown, 
second pair dusky, with pale reddish fringe. Caterpillar, green, 
and yery slender, with three white lines on the back, and one on 
thesides ; feeds on the sallowand poplar. Not common. Essex, 
Kent, Surrey, Hertfordshire, and Devonshire. 
Tue SuenDER Goup Tonove (7. gracilis, STEPHENS). Wings 
one inch one-twelfth ; differs from the preceding, with which it 
isfound, in having a longer and more slender body; the first 
pairof wings darker, with the streaks less yellowish, the third 
being straight, and the fourth wanting; the stigmata have pale 
margins, Scarce. Essex, Kent, and Surrey. 
BOMBYCIA (Hiner). 
Tue Oster (B. Viminalis, Srernens) appears in June. Wings 
one inch to one-fourth ; first pair glossy ashy red, with black 
clouds; the ordinary stigmata with interrupted black margins, 
the base with a black line; second pair grey, with a black streak 
onthe margin; fringe of all the wings hairy. Caterpillar pale 
green, with five whitish stripes; head brown, with black spots ; 
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