» Family Perlidae (Golden Stones)
10 genera aren't included.
This is page 3 of specimens of Perlidae. Visit the main Perlidae page for:
- The behavior and habitat of Perlidae.
Pictures of 41 Stonefly Specimens in the Family Perlidae:
Female Claassenia sabulosa (Golden Stone) Stonefly Adult
View 3 PicturesI think this is one of the most poorly understood of the golden stoneflies. It is rare to see any articles about it or fishing the hatch. It emerges late in summer usually on medium to large rivers.The adults are quite secretive but it is something to see the adults run across the water surface. These guys can really run. The males have short wings.The females are up to 1 1/4 inch long rivaling the salmonfly as the largest adult stonefly in the west.The adults are not real golden in color, especially the females which are more of an off yellow to off white abdomen. In handling the adults it is obvious that they shun direct sunlight. I find them by turning over rocks close to the water's edge. Male Calineuria californica (Golden Stone) Stonefly Adult
View 15 PicturesA few of these larger stoneflies were fluttering around the South Fork on an evening dominated by much smaller species.
This one has been difficult to identify. I can't spot any of the gill remnants characteristic of Perlidae, but the wing venation (Venation: The pattern in which the veins on the wings of an insect are arranged. It is usually one of the most useful identifying characteristics.) seems to point in that direction. I tried keying it out as Perlodidae but arrived at Isoperla, every western species of which has significantly smaller bodies than this one.
Edit: See forum comments for a likely correct identification.