312 
Psyche 
[September-December 
Figure 3. Hastaperla brevis. Mature larva, A. Habitus, B. Pronotum, C. Cer- 
cus, lateral view, D. Eighth tergite, E. Right foreleg, F. Right hindleg, G. Left lateral 
view of head. New Hampshire, Grafton Co., W. Thornton, Hubbard Brook, 5 June, 
1975, S. B. Fiance. 
