164 



C. E. HARDENBERG. 



congregated at the lower half of the epicrania (text-fig. 8, a, b), 

 the thoracic legs increase in size from the 1st to the 3rd 



Text-fig. 8. 



J i 



LA — U ii — i 



..^agKgiai J 



^4 — i-4 — i-4 



J*7rc/i/ en/ra/ 



> 



C E 



Acanthopsyche alba Janse. Larva, full grown (except d). 

 A. Antero- dorsal view of head, showing pattern and arrangement of 

 setse; mouth parts, excej)t labrum. not shown. X 11. b. Postero- 

 ventral view of ocellar and subocellar region, showing pattern and 

 setse. X 34. c. Dorsal view of thoracic plates, x 6. D. Number 

 and arra.ngement of hooklets on abdominal proleg of first instar 

 larva, x 56. e. Hooklets on abdominal pi-oleg of full-grown 

 larva. X 28. 



pair, the hooklets on the abdominal prolegs are arranged in a 

 single loop, open at the medio-caudal aspect, the hooks of 



