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Insect Order Plecoptera (Stoneflies)

Pictures Below

This is page 13 of specimens of Plecoptera. Visit the main Plecoptera page for:

  • The behavior and habitat of Plecoptera.
  • 6 underwater pictures of Plecoptera.
  • 1 streamside picture of Plecoptera.

Pictures of 140 Stonefly Specimens:

Specimen Page:1...12131415
Isoperla quinquepunctata (Little Yellow Stonefly) Little Yellow Stonefly NymphIsoperla quinquepunctata (Little Yellow Stonefly) Stonefly Nymph View 2 PicturesSize - (excluding tails) - 10 mm
Status at time of photo - preserved but no discernible color change as specimen was captured only a few days earlier.
Key characters - unique pattern on dorsal (Dorsal: Top.) head and thorax (Thorax: The thorax is the middle part of an insect's body, in between the abdomen and the head, and to which the legs and wings are attached.); dark medial (Medial: Toward the middle of the body.) terga (Tergum: the dorsal part of an abdominal segment or segments (terga). Also used to describe the entire abdominal dorsum or the thoracic dorsal segments of Odonata.) stripe between two paler stripes

This species is very common in west slope north Sierra watersheds. Richard W. Baumann & Boris C. Kondratieff did a study on the same section and at the same time of year (APRIL 25-29, 2010) where this specimen was taken. No other species of Isoperla were reported from this location and quinquepunctata was very abundant. Their hatches can be very heavy some Springs.

Collected March 21, 2011 from the Lower Yuba River in California
Added to by Entoman on November 1, 2011
Isoperla fulva (Yellow Sally) Stonefly AdultIsoperla fulva (Yellow Sally) Stonefly Adult View 4 PicturesAn adult stonefly carrying a load of red mites.
Collected May 31, 2011 from the Touchet River in Washington
Added to by Bnewell on June 27, 2011
Claassenia sabulosa (Golden Stone) Stonefly NymphClaassenia sabulosa (Golden Stone) Stonefly Nymph View 2 PicturesThis is a stonefly that has recently molted and has not yet darkened.
Collected May 14, 2005 from the Jocko River in Montana
Added to by Bnewell on June 28, 2011
Male Isoperla fulva (Yellow Sally) Stonefly AdultMale Isoperla fulva (Yellow Sally) Stonefly Adult View 2 PicturesThese Isoperla are loaded with red parasitic mites.
Collected June 6, 2011 from the Touchet River in Washington
Added to by Bnewell on June 26, 2011
Paraleuctra occidentalis (Tiny Winter Black) Stonefly AdultParaleuctra occidentalis (Tiny Winter Black) Stonefly Adult View 1 PicturesMembers of the family Leuctridae are usually easily identified to family due to the "rolled" wing. They are small, nearly 1/4 " in length, black in color and emerge in early spring.
Collected March 7, 2012 from the Touchet River in Washington
Added to by Bnewell on March 20, 2012
Perlidae (Golden Stones) Stonefly NymphPerlidae (Golden Stones) Stonefly Nymph View 2 PicturesThis is a nymph that has recently molted thus has not yet acquired its normal coloration.
Collected June 15, 2010 from the Flathead River-upper in Montana
Added to by Bnewell on June 26, 2011
Specimen Page:1...12131415
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