apooheima] SELIDOSEM1DAE 



blackish mixed with red, has been recorded from Perth, but 

 the record appears untrustworthy.] 



2. A. hispidaria, F. 32-34 mm. Antennae pectinated to 

 apex, pale ochreous. Thorax blackish mixed with whitish. 

 Abdomen blackish. Forewings light ochreous-grey, sprinkled 

 with black ; first, median, and second lines curved, dark 

 fuscous, sometimes suffused, second serrate ; praesubterminal 

 broad, waved, rather dark fuscous. Hindwings as forewings, 

 but paler, markings very faint. <j? apterous ; antennae and 

 tibiae hairy. 



England to York, local; C. Europe; 3. Larva purplish-brown ; 

 8 and 9 with pairs of reddish tubercles; 12 with two pale 

 marks ; head yellow-brown, marked with red-brown : on oak ; 

 5, 6. 



3. A. pedaria, F. (pilosaria, Hb.) 38-46 mm. Apex of 

 antennae simple. Forewings mixed with pale ochreous and 

 fuscous, faintly greenish, sprinkled with black ; first, median, 

 second, and praesubterminal lines irregular, waved, fuscous, 

 marked with blackish ; a fuscous discal spot. Hindwings 

 whitish or light grey, sprinkled with fuscous ; second line 

 irregular, fuscous. $? apterous ; tibiae not hairy. 



Britain to Caledonian Canal, N. Ireland, common ; C. 

 Europe, N. Asia, Japan ; 1-3. Larva grey-brown or greyish- 

 ochrcous, with spots or patches suffused with pale rosy; 5-7, 

 12 each with four tubercles bearing bristles; 8-11 with similar 

 less developed tubercles : on elm, oak, etc. ; 5, 6. 



17. Biston, Lch. 



Face hairy or rough-scaled. Tongue developed or obsolete. 

 Antennae in $ strongly bipectinated to apex, or with apex 

 simple. Palpi hairy or rough-scaled. Thorax densely hairy 

 above and beneath, with slight loose anterior crest. Femora 

 densely hairy; posterior tibiae hairy, in ^ not dilated, middle- 

 spurs very short (betularius) or absent. Forewings in $ without 

 fovea; 10 usually connected or anastomosing with 9, 11 usually 

 out of 10, seldom separate or absent. 



A rather small group, inhabiting India and Africa as well as 

 Europe. Imago with body rather stout, forewings less broad. 



1. Second line of forewings twice angulated . . 2. 



,, ,, „ not angulated . 1. hirtwrius. 



2. Forewings with two brown bands . 2. stratarius. 



,, without brown bands . . 3. betti/arius. 



1. B. hirtarius, CI. 38-50 mm. Apex of antennae simple. 



