Opis:
This is the largest Stonefly species (Pteronarcidae) in North America. A feast for a trout. Trout fisherman try to tie and match flies to both adults and larva. In this video the life history of stonefly (Plecoptera) adults and aquatic stream-loving nymphs is revealed. The adult is in the genus Pteronarcys while the nymphs of both genera Acroneuria and Peltoperla are investigated.