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 ; doi'sal 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 

 $ 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 Amei'ican 

 species are probably to be included 

 with the following. 



Termen of forewings dentate 



1. iacertinaria. 

 „ „ not dentate 



2. falcataria. 

 1. F. Iacertinaria, L. (lacertula, 

 Schiff.) 31-35 mm. Forewings oclire- 

 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. Hind wings whit- 

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

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



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

 Europe, N. America ; 5, 6, 8. Larva ochreous-bi'own, 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; G, 7, 9. 



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

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

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



Neuration of Falcaria falcataria. 



