BOMB YCID^. 21 



thorn, Helianthemum vrdgare, Eupliorhia cypai'issias, Centaurea 

 jacea, Geranium dissectmn, Hieracium jpilosella, and even 

 heather. 



Genus 5. LASIOCAMPA. 



Large insects. Antennge in the male with long, stout 

 pectinations, which are densely ciliated ; in the female hardly 

 toothed ; palpi extremely small ; thorax and abdomen very 

 robust, the latter slightly tufted at the tip ; wings very broad 

 and powerful, and having a peculiarly substantial appear- 

 ance. 



The three species are readily distinguished — L. rubi has 

 not the white spot which is conspicuous in the other two ; 

 L. trifolii has, nearly always visible, a curved paler stripe 

 near the base, which is absent in L. quercds. 



1. L. trifolii, Msp. — Expanse of male If to 2 inches, of 

 female 2 to 2^ inches. Dull reddish-brown, with a narrow 

 paler stripe beyond the middle of the wings, and a white 

 central spot. Fore wings rather pointed. 



AntenuEe of the male strongly and densely pectinated, the 

 shaft whitish, the long pectinations brown ; thorax stout ; 

 abdomen somewhat tapering ; head, thorax, and abdomen 

 densely clothed with long fluffy scales of a purple-brown or 

 dark tawny colour, and the abdomen having a rather divided 

 similar tuft at the anal segment. Fore wings broadly trian- 

 gular ; costa straight ; apex sharply angulated ; hind margin 

 slightly rounded and hardly oblique ; dorsal margin curved 

 and densely fringed with long soft silky scales ; light red- 

 brown, with a faintly indicated, much curved, ashy or yellowish 

 stripe from the costal margin to the middle of the base, 

 the outer edge thereof indicating the usual first line; second 

 line a yellowish-white transverse stripe beyond the middle 

 of the wing, broadest toward the dorsal margin, gracefully 

 curved and rather oblique; beyond this the hind marginal 



