LASIOCAMPA] 



LASIOCAMPIDAE 



321 



Kent to Devon, Warwick to Lancashire, local ; C. and S. 

 Europe, Asia Minor to Syria, N. Africa ; 8. Larva black, hairs 

 pale orange, on sides pale greyish ; subdorsal line sometimes 

 whitish ; sometimes subdorsal red spots on 3 and 4 ; spiracles 

 yellow : on Trifolium, Cytisus, Calluna, etc. ; 9-6. 



2. ERIOGASTER, Germ. 



Palpi short. Forewings : 6 and 7 connate or stalked, 9 to 

 apex or termen. Hindwings : 6 from 

 angle, 7 from upper margin before 

 middle, 8 connected or anastomosing 

 with 7 (sometimes also part of cell), a 

 praecostal spur and sometimes one or 

 two pseudoneuria before or beyond 

 this. 



A moderate group of nearly cosmo- 

 politan distribution. 



1. Forewings with white discal spot 



2. lanestris. 



without white discal 



spot . 2. 



2. Hindwings with pale median line 



3. 



without median line 



3. rubi. 



3. Base of forewings brown . 



>, grey . 



1. E. populi, L. 35-42 mm. 



Neuration of Eriogaster rubi. 



1. populi. 

 4. crataegi. 



Forewings thinly scaled, 

 blackish-grey ; a brown basal patch, limited by curved whitish 

 first line; costa sometimes reddish -brown ; second line irre- 

 gular, whitish ; cilia dark brown, whitish-spotted. Hindwings 

 thinly scaled, grey; a cloudy whitish median line; cilia as in 

 forewings. 



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

 11, 12. Larva pale grey, sometimes whitish or greenish-tinged, 

 marked with dark fuscous, hairs short, dark fuscous, on sides 

 longer, grey ; a dorsal series of dark fuscous or grey connected 

 blotches, sometimes orange-marked : on oak, birch, poplar, etc. ; 

 5,6. 



2. E. lanestris, L. 33-43 mm. Forewings reddish-fuscous, 

 darker towards base, costa, and dorsum, posteriorly whitish- 

 sprinkled ; a white basal spot or irregular mark ; a white discal 

 spot ; "second line slightly curved, white ; cilia dark brown. 



Y 



