316 



LASIOCAMPINA 



[CILIX 



reaching OOSta ; an interrupted grey terminal streak. Hind- 

 wings white, often greyish in disc; a narrow grey terminal 

 fascia. 



Britain to Lanark, Ireland, common ; C. and S. Europe, 

 WC. Asia, N. America ; 5, 6, 8. Larva dark brown, paler and 

 reddish-tinged dorsally, especially on 5 and 6 ; dorsal line 

 darker; sometimes a spiracular white spot on 12; pairs of 

 small tubercular prominences on 3 and 4 : on hawthorn and 

 blackthorn ; 6, 7, 9, 10. The imago undoubtedly imitates the 

 excrement of birds. 



2. Falcaria, Hw. 

 Head smooth or hairy. Tongue developed. Antennae in 

 S bipectinated to apex. Posterior tibiae without middle- 

 spurs. Forewings : 6 separate. Hind- 

 wings : 8 approximated to 7 near 

 beyond its origin. 



Some Asiatic and North American 

 species are probably to be included 

 with the following. 



Termen of forewings dentate 



1 . lacertinaria. 

 ,, „ not dentate 



2. falcataria. 

 1. F. lacertinaria, L. (lacertula, 

 Sohift'.) 31-35 mm. Forewings ochre- 

 ous, mixed and strigulated with dark 

 fuscous ; veins darker ; first and 

 second lines dark fuscous, nearly 

 straight, parallel ; a black discal 

 dot; apex suffused with ochreous-brown ; termen irregularly 

 dentate ; cilia blackish, spotted with white. Hindwings whit- 

 ish-ochreous, fuscous-sprinkled, posteriorly brownish -tinged ; 

 a faint grey postmedian line ; a dark fuscous discal dot. 



Britain to Ross, N. Ireland, rather common ; N. and C. 

 Europe, N. America; 5, 0, 8. Larva ochreous-brown, darker- 

 marked; dorsal line anteriorly pale, dark-edged, posteriorly 

 dark, interrupted ; two blackish dorsal marks on 6, preceded 

 by a pale area ; pairs of tubercular prominences on 3, 4, and 

 12: on birch; 6, 7, 9. 



2. F. falcataria, L. (falcula, Schiff.) 33-37 mm. Forewings 

 ochreous-whitish to ochreous-brown ; lines waved, dark fuscous, 

 first preceded by a fainter line, second acutely angulated, pre- 



Nuuration of Falcaria falcataria. 



