BREPHOSj 



MONOCTENIADAE 



253 



4. BREPHOS, 0. 



Face roughly hairy. Tongue developed. Antennae in <$ 

 evenly ciliated or shortly bipec- 

 tinated. Palpi short, clothed 

 with long rough hairs. Thorax 

 hairy beneath. Femora hairy. 

 Fore wings : 10 out of 9 or absent. 

 Hindwings : 6 and 7 sometimes 

 stalked, 8 closely approximated to 

 cell to middle, connected or shortly 

 anastomosing with it near base. 



A very small genus, confined 

 to north temperate regions ; corre- 

 lated with the preceding. Larva 

 with fully-developed prolegs on 9, 

 and rudimentary ones on 7 and 8. 

 Pupa in a chamber in bark. Neuration of Brephos notim. 



Antennae in $ dentate ; a central white costal blotch 



1. parthenias. 

 bipectinated ; no central costal blotch Z.notha. 



1. B. parthenias, L. 33-35 mm. Head black. Antennae in 

 c dentate. Forewings dark ochreous- fuscous, dorsally more 

 blackish ; first and second lines and praesub terminal blackish, 

 serrate ; an oval blackish whitish-centred discal spot ; a cloudy 

 white costal blotch before this, and another before subterminal ; 

 cilia barred with white. Hindwings orange ; discal spot, a very 

 large dorsal blotch, and irregular terminal fascia blackish. 



Britain to Caledonian Canal, common ; N. and C. Europe, 

 N. Asia, NE. America ; 3, 4. Larva green ; dorsal line whitish- 

 edged ; lateral whitish ; subspiracular broader, yellowish ; two 

 white dots near spiracles on each segment : on birch ; 6, 7. 



2. B. notha, Hb. 28-32 mm. Head dark fuscous. Antennae 

 in $ bipectinated. Forewings dark fuscous, sprinkled with 

 whitish ; first and second lines blackish, irregular ; subterminal 

 pale, anteriorly darker-margined ; a blackish pale-centred discal 

 spot ; a cloudy white costal spot before subterminal ; cilia 

 hardly barred. Hindwings as in B. parthenias. 



England to York, local ; C. Europe, N. Asia ; 3, 4. Larva 

 green, sides black ; dorsal line darker, yellowish -edged ; sub- 

 dorsal and lateral fine, yellow ; subspiracular pale yellow ; head 

 and 2 black-spotted : on aspen and Salix caprea, between joined 

 leaves ; 6. 



