Sampling Station 



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



Para 



1 ' 

 Nemoura besametsa 



Isoperla fulva 

 fusa 

 'a poda 

 Pteronarcys 



californica 

 Alloperla coloradensis 



Isocapnia vedderensis 

 Alloperla severa 

 Euaapnopsis vedderensis 

 Alloperla pallidula 

 Acroneuria pacifiaa 



Nemoura oinctipes 

 Alloperla signata 

 Isoperla mormona 

 Arcynopteryx parallela 

 Braohyptera nigripennis 



Isogenus tostonus 

 Pteronarcella badia 

 Isogenus elongatus 

 Claassenia sabulosa 

 Alloperla sp. 



Braohyptera pacifiaa 

 Isoperla patricia 

 Isocapnia missourii 

 Capnia sp. 

 Capnia limata 



Acroneuria abnormis 

 Isoperla longiseta 

 Braohyptera fosketti 

 Isogenus frontalis 

 Braohyptera sp. 



Isogenus s p . 

 Isoperla sp. 



Salmonid 

 Zone 



Transition 

 Zone 



Nonsalmonid 

 Zone 



Figure 22. Plecoptera of the Yellowstone River. 



40 



