80 



Illinois Natural History Survey Bulletin 



Vol. 23, Art. 1 



Tips of apical processes not so long or 

 sharp, figs. 311, 312 5 



aMaaAMv 



314 



315 



Fig. 314. — Cheumatopsyche 

 campyla pupa, hook-bearing 

 plate'3P. 



Fig. 315. — Hydropsyche orris 

 pupa, hook-bearing plate 3P. 



5. Apical processes with a group of 3 or 



4 long, stout spines and with mesal 

 point much shorter than lateral 



point, fig. 311 Arctopsyche, p. 83 



Apical processes without such a group 

 of spines and with mesal point as 

 long as or longer than lateral point, 

 fig. 307 6 



6. Apical processes with base large and 



inflated, apex short and narrow, 



fig. 312 Potamyia, p. 85 



Apical processes fairly uniform in 



MaCRONEMA 

 ZEBRATUM 



Smicridea 

 fasciatella 



Arctopsyche 



SP. 



Parapsyche 



CARDIS 



Diplectrona 



MODESTA 



Hydropsyche 

 simulans 



Potamyia 



FLAVA 



Cheumatopsyche^ 



ANALIS 



Fig. 316. — Hydropsychidae, pupal mandibles. 



