30O LEPIDOPTERA. 



Genus 5. ACENTROPUS. 



Antennffi of the male notched in i'ront, of the female 

 simple; palpi small, blunt, drooping ; head broad ; thorax 

 smooth, small; abdomen short, suddenly pointed; fore 

 wings narrow, jjointed, the discal cell long and narrow ; hind 

 wings narrow, the cell open ; legs short ; whoU}' covered, 

 very thinly, with small mealy looking scales. 



We have but one species. 



1. A. niveus, Oliv. — Expanse, male I inch, winged 

 female J inch (12-19 mm.) Fore wings finely scaled, white, 

 the costa and nervures tinged with brown. Hind wings 

 white. Body and legs short. 



Antennae of the male simple but notched, rather thick, 

 dark brown ; palpi almost concealed, droojDing ; face broad, 

 white ; head and thorax greyish-white, with the appearance 

 on the latter of a soft bloom ; abdomen short, suddenly 

 pointed, brownish white. Fore wings narrow and pointed ; 

 costa straight ; apex sharply angulated ; hind margin very 

 oblique and but slightly curved; colour dull white or 

 brownish-white with a mealy look ; costal margin and 

 nervures tinged with brown ; no other markings ; cilia 

 white. Hind wings very narrow, hardly wider than the fore 

 wings, apex rather pointed ; pure white ; cilia of the same 

 colour. Female, when winged, nearly double the size, but 

 otherwise similar, abdomen a little thickened ; but often the 

 wings are absent or aborted. 



Underside of the fore wings white, tinged on the costa 

 and apex with brown. Hind wings white. Body and legs 

 brownish white, the latter remarkably short. 



On the wing from June till September, apparenth' in two 

 generations. 



Larva rather stout but tapering to each extremity, and of 

 f(uite ordinary form ; hea,d somewhat rounded, the lobes well 

 defined, pale brown ; dorsal plate of the same colour, 



