34 LEPIDOPTERA. 



Islands. Abroad it is known to occur in some parts of 

 Central Europe, and in Southern Russia. 



Genus 16. HETEROGRAPHIS. 



Antenna; simple, thickened toward the base in the male, 

 and tapering off; palpi ascending, straight and pointed ; fore 

 wings elongated, narrow, but the cell moderately broad ; 

 hind wings not very broad, but the space between veins 1 

 and 2 very wide, and the median fringed on the upper 

 surface with long hair scales. 



We have only one species. 



1. H. oblitella, Zt//.— Expanse \ to \ inch (15-18 mm.). 

 Fore wings narrow, whitish-drab, with, near the base, a 

 broad faint yellow-grey transverse band ; the two lines white, 

 edged with black dots ; discal dot usually single, black. 

 Hind wings smoky-white. 



Antennje of the male simple, a little thickened at the base 

 and then curved, black-brown, barred with white ; palpi rather 

 long, erect, the second joint conspicuous, white, more brownish 

 outside ; head and thorax pale grej'ish drab ; abdomen silky 

 grey-white. Fore wings very narrow, the costa most flatly 

 arched, more rounded toward the apex, which is bluntly 

 angulated ; hind margin very faintly curved, and hardly 

 oblique ; colour brownish-white, much dusted with grey ; 

 first line obscure and irregular, white, partially edged on 

 both sides with black dusting and dots, which are rather 

 roughly scaled ; before this is a parallel broad faint yellow- 

 grey band, dusted on the nervures with darker grey ; second 

 line white, very little oblique, and rather direct, but in- 

 dented on the inner side, and in some degree on the outer b}' 

 cloudy black dots and shades ; discal spot a faint blackish 

 dot or pair of dots ; hind mai-gin edged with faint black 

 dots ; cilia cloudy white. Hind wings not very broad ; hind 



