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Insect Order Plecoptera (Stoneflies)



Pictures Below

This is page 8 of specimens of Plecoptera. Visit the main Plecoptera page for:

  • The behavior and habitat of Plecoptera.
  • 6 underwater pictures of Plecoptera.

Pictures of 151 Stonefly Specimens:

Specimen Page:1...789...16
Female Skwala curvata (Large Springfly) Stonefly AdultFemale Skwala curvata (Large Springfly) Stonefly Adult View 2 PicturesThis female dropped her eggs just before this photo was snapped. The distinctive notch in the subgenital plate identifies the species. An interesting observation is how active they get when exposed to direct sunlight. Trying to stage this specimen was most difficult. In the shade it would calm right down, but when exposed to direct sun it would immediately go nuts, scampering all over quickly without pause. Perhaps this explains why they don't seem to be found out and about on overcast days, but if the sun peeks out... She was 24 mm long, head to wingtip.
Collected March 22, 2013 from the Lower Yuba River in CA
Added to Troutnut.com by Entoman on March 27, 2013
Female Claassenia sabulosa (Golden Stone) Stonefly AdultFemale 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.
Collected August 3, 2011 from the Touchet River in Washington
Added to Troutnut.com by Bnewell on August 3, 2011
Sweltsa (Sallflies) Stonefly AdultSweltsa (Sallflies) Stonefly Adult View 2 Pictures
Collected May 15, 2006 from Lolo Creek in Montana
Added to Troutnut.com by Bnewell on July 3, 2011
Specimen Page:1...789...16
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