340 LEPIDOPTERA. 



Genus 31. CERIGO. 



Antennae of the male finely ciliated ; eyes naked, without 

 lashes ; thorax smooth in front, decidedly crested at the 

 back ; abdomen very smooth, but with minute crests ; fore 

 wings broad, almost truncate ; hind wings broad ; vein 5 

 straight from the middle of the cross-bar, but hardly per- 

 ceptible. 



We have but one species. 



1. C. cytherea, Fab. ; matura, Btaiicl. Cat. — Expanse 

 1^ to If inch. Fore wings broad, dark umbreous marbled 

 with black ; transverse lines yellowish-white ; hind wings 

 pale straw-colour, with a broad smoky-brown hind border, 

 invaded toward the anal angle with white. 



Antennas of the male notched with short saw-like teeth, 

 each surmounted by a tuft of minute bristles, otherwise much 

 ciliated, dark brown ; palpi rather short, dark brown, the 

 terminal joint thick and pointing forward ; head densely 

 tufted on the face and on the top, but the tufts divided by a 

 transverse hollow of short scales, blackish-brown ; thorax dark 

 brown dusted with black ; edges of the collar and shoulder 

 lappets indicated in blackish-brown ; at the back is a small 

 crest of two tufts tipped with white ; fascicles smoky- white ; 

 abdomen pale smoky-brown, very smooth ; dorsal ridge with 

 one or more slightly raised tufts or crests of darker brown, 

 which are so fugitive as usually to appear absent ; lateral 

 tufts very small and neat ; anal tuft narrow, dark brown. 

 Fore wings broad, especially so behind ; costal and dorsal 

 margins very straight ; apex bluntly angulated ; hind margin 

 very full, even expanded, and hardly oblique, except below 

 the middle, where it is rounded off, strongly crenulated ; 

 colour dark umbreous, clouded and dusted with black, and 

 when very fresh faintly flushed with golden yellow ; basal 

 line obscure, limited to two black spots ; first line unusually 

 near the base of the wing, and rather perpendicular, yet 



