240 NOTODONTINA [eois 



9 ; subdorsal blackish, interrupted ; spiracular pale oclireous ; 

 a whitish dorsal spot on 10 : on Polygonum avicidare (?) ; 8-5. 



17. E. bisetata, Hufn. 19-22 mm. Head blackish, fillet 

 white, collar whitish-ochreous. Antennae in (J filiform, cilia 1. 

 Posterior tarsi in c^ J, rough-scaled, tibial tuft large. Forewings 

 wliitish-oehreous, more or less sprinkled with dark fuscous ; 

 first and median lines grey, irregular, second dark grey, waved, 

 margins of subterminal grey, anterior rather thick, iiTegular ; 

 a black discal dot before median. Hindwings as forewings, but 

 first line absent, discal dot beyond median. 



Britain to Ross, Ireland, common ; C. Europe, W. and N. 

 Asia ; 6, 7. Larva brown, 9-13 ochreous ; 5-9 with dark brown 

 dorsal V-shaped mark ; dorsal line pale, edged with dark brown, 

 more strongly on 10-13 : on Taraxacum, Cardamine, etc. ; 8-5. 



2. Sterrha, Hh. 



Antennae in S serrate, ciliated with fascicles. Posterior tibiae 

 in c? slender, in (5 and $ with end-spurs only. Hindwings: 6 

 and 7 stalked. 



A genus of moderate size, at present not recognised outside 

 the European region ; only one species reaches Britain. 



1. S. ochrata, Sc 19-21 mm. Head ochreous, face fuscous. 

 Forewings rather deep ochreous ; lines regular, first, median, 

 and margins of subterminal darker, second fuscous. Hindwings 

 as forewings, but first line absent, second more sinuate ; termen 

 rounded. 



Kent, Surrey, Essex, local ; C. and S. Europe, WC. Asia to 

 Turkestan ; 6. 



3. Leptombris, Hh. 



Antennae in S ciliated with fascicles. Posterior tibiae in S 

 dilated, without spurs, in $ with all spurs present. Hindwings: 

 6 and 7 sometimes stalked (variable in the same species). 



A large genus of almost universal distribution. Larva more 

 uniformly cylindrical and slender than in Eois, head rounder. 



1. Face mixed throughout with white . 9. immorata. 



„ wholly l)lack or dark fuscous . .2. 



2. Wings ochreous or reddish . . .3. 



,, white or whitish-ochreous . . .4. 



3. Termen of hindwings angulated . . 5. imitaria. 



„ „ rounded . .10. ruhiginata. 



4. Discal dot of hindwings before median line 8. strigai'ia. 



„ „ „ on or beyond median line 5. 



