PSYCHID^. 339 



It seems to like dry heath-ground in sunny, sheltered places, 

 but will also occasionally inhabit moist, swampy places. 



Abroad it is found in France, Germany, Italy, Hungary, 

 Dalmatia, Southern Russia, and Armenia. 



2. P. opacella, H. S. — Expanse of the male f inch. 

 Head and body black, hairy; wings nearly transparent, 

 tinted with blackish. 



Antennae of the male of moderate length, curved forward, 

 strongly pectinated, the teeth long, slightly fringed, sloping 

 obliquely forward, but not lying in a confused mass, and 

 becoming shorter toward the apex ; smoky-black. Head 

 having the palpi completely concealed under a dense mass of 

 long blackish hair-scales projecting forward and downw^ard. 

 and leaving only the eyes visible. Thorax stout, thickly 

 covered with long, loose, soft, black hair-scales ; abdomen 

 tapering, black, covered on the upper side with long blackish 

 scales, but at the sides with a line of projecting tufts of 

 whitish scales ; apex tufted. Fore wings rather narrow at 

 the base, becoming moderately broad beyond the middle ; 

 costa, for two-thirds of its length, straight, then rapidly 

 curved to the blunt apex ; dorsal and hind margins gently 

 rounded; anal angle rather full, but rounded off. Hind 

 wings rather short, rounded. All the wings nearly trans- 

 parent, covered with minute hair-like scales, which lie 

 separately and do not touch or overlap; margins sharply 

 blackish ; nervures distinct, smoky-brown, the costal and 

 subcostal nervures of the fore wings being also rather 

 swollen ; cilia blackish, extremely short, except on the dorsal 

 margin of the hind wings, where they become long, like hairs. 

 Underside like the upper, but the thorax more deeply black, 

 and the abdomen shaded with whitish or silvery-grey hairs ; 

 legs blackish. Apparently not variable, but in preserved 

 specimens the blackish colouring fades in some degree, so 

 that the general colour, and more particularly the nervures, 

 become tinged with brown. 



