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Arthropod Class Insecta (Insects)



Pictures Below ↓

This is page 111 of specimens of Insecta. Visit the main Insecta page for:

  • The behavior and habitat of Insecta.
  • 114 underwater pictures of Insecta.

Pictures of 1229 Insect Specimens:

Specimen Page:1...110111112...124
Female Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly SpinnerFemale Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly Spinner View 6 Pictures
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 17, 2020
Male Lepidostoma podagrum (Little Brown Sedge) Little Brown Sedge AdultMale Lepidostoma podagrum (Little Brown Sedge) Little Brown Sedge Adult View 3 Pictures
Collected May 12, 2011 from the Fall River in California
Added to Troutnut.com by Entoman on December 10, 2011
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.

Entoman
Collected March 21, 2011 from the Lower Yuba River in California
Added to Troutnut.com by Entoman on November 1, 2011
Ephemerella excrucians (Pale Morning Dun) Mayfly NymphEphemerella excrucians (Pale Morning Dun) Mayfly Nymph View 6 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Cinygmula (Dark Red Quills) Mayfly NymphCinygmula (Dark Red Quills) Mayfly Nymph View 3 Pictures
Collected May 10, 2008 from the Chena River in Alaska
Added to Troutnut.com by Troutnut on April 20, 2011
Male Drunella (Blue-Winged Olives) Mayfly DunMale Drunella (Blue-Winged Olives) Mayfly Dun View 3 Pictures
Collected July 7, 2019 from the Ruby River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Male Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly DunMale Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly Dun View 3 Pictures
Collected August 15, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Female Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly SpinnerFemale Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly Spinner View 3 Pictures
Collected August 4, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 19, 2006
Neoleptophlebia Mayfly NymphNeoleptophlebia Mayfly Nymph View 6 Pictures
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on July 3, 2018
Paraleptophlebia bicornuta (Mahogany Dun) Mayfly NymphParaleptophlebia bicornuta (Mahogany Dun) Mayfly Nymph View 2 Pictures
Collected February 27, 2009 from the Flathead River-upper in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Specimen Page:1...110111112...124
Top 10 Fly Hatches
BaetisBaetidaeEphemerellidaeHexagenia limbataChironomidaeHeptageniidaeEphemerella subvariaEphemerellaIsonychiaHydropsychidae
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