DIPTERA 



Ceratopogonidae 

 Dol ichopodidae 



S P- 

 Hemerodromia sp. 

 Protanyderus sp. 

 Athevix sp. 

 Simuliwn sp. 

 Dicranota sp. 

 Hexatoma sp. 

 Holorusia sp. 

 Tipula sp. 

 Lirnnophova sp. 

 Chironomidae 



ISOPODA 

 Asellus sp. 



LEPIDOPTERA 

 Cataclysta sp. 



HEMIPTERA 



Rhagovelia sp. 

 Ambry sis sp. 

 Callicorixa sp. 

 Cenocovixa sp. 

 Trichoeovixa sp. 

 Sigava sp. 

 Gevvis sp. 

 Ranatra sp. 



COLEOPTERA 

 Oreodytes sp. 

 Cyrinus sp. 

 Dubiraphia sp. 

 Microcylloepus sp. 

 Optioservus sp. 

 Stenelmis sp. 

 Zaitzevia sp. 

 Helichus sp. 



2 i 3 



Sampling Station 

 7 8 9 10 II 12 13 14 15 16 17 18 19 20 



Salmonid 

 Zone 



Transition 

 Zone 



Nonsalmonid 

 Zone 



Figure 26. Aquatic invertebrates of the Yellowstone River. 



44 



