595.7 
CSbp 
¥# 
PLECOPTERA NYMPHS 
OF AMERICA 
(NORTH OF MEXICO) 
787857 
On} | avn (5/3 £ ; hy. ™y Ly poy 4 de A a poh wen 4 ng) Ly ype. mM wary rrow ah) uvt ) 
AA\ars) 9% @ Wea em > 
Lew ytd 
