U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 50 PL. 18 



145 



146 



148 



■^ '■■■/■ 



149 



152 



154 



155 



156 



./. L 



157 



North American Achorutinae, Neanurinae, and Podurinae. 



For explanation of plate see page 523. 



