316 



LASIOCAMPINA 



[CILIX 



reaching costa ; 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, 

 bipectinated to apex 



Neuration of Falcaria falcataria. 



Tongue developed. Antennae in 

 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, 

 Schiff.) 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 bro wnish- 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, 6, 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- 



