HEPIALIDAl. 165 



seems to be found, and Sir John Llewellyn reports the latter 

 to be the only form which he has met with near Neath, 

 Glamorganshire. This also was my experience in Surrey. 



It inhabits the greater portion of Northern, and much of 

 Central Europe, the Pyrenees, and the Piedmontese Alps. 



5. H. humuli, L. — Expanse, 1| to 2| inches. Wings of 

 the male bright silvery-white ; fore wings of the female 

 yellow, with dull red markings ; hind wings grey. 



Antennge very small and slender in both sexes. Face of 

 the male red, top of the head yellowish ; thorax clothed with 

 very long scales varying in colour, pale drab, whitish, 

 yellowish, or reddish, in front, shading off usually to greyish- 

 white at the back ; abdomen yellowish-brown, or brown, with 

 scattered whitish scales. Fore wings more pointed than in 

 the previous species, with the costa rather arched near the 

 base, and gracefully curved, inside which the subcostal 

 nervure is strongly ridged ; hind wings somewhat bluntly 

 pointed and rather broad ; fore and hind wings of a brilliant, 

 glistening, silvery-white, without markings, but with the 

 •^xtreme edge of the margins, and the cilia, yellowish-brown 

 or pale reddish. Antennae and face of the female red ; head 

 and thorax yellow ; abdomen long, shining brown w'ith 

 scattered yellow, scales. Fore wings shaped as in the male, 

 but broader ; yellow, with dull pale red markings, consisting 

 of a narrow stripe along the subcostal nervure from the base 

 to the top of the wing, joined at the base to another of vari- 

 able breadth which proceeds two-thirds of the distance to the 

 anal angle, then bends and passes almost straight to the 

 apex, thus forming the sides of a long triangle of varying 

 width ; through the middle, lengthwise, of this triangle, lies 

 a series of three or four irregular angulated spots or blotches 

 of the same colour, often connected with each other or with the 

 sides of the triangle by slight lines ; hind margin edged with 

 reddish, often with similar dashes on the tips of the nervures ; 



