Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York

Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Stream photos

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Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Perlodidae (Springflies and Yellow Stones) Stonefly Nymph

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington

This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.

11 Recently Added Photos

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Arthropod Family Asellidae (Cress Bugs)

Cress Bugs are a common invertabrate in PA spring creeks. They are significant food forms for trout where found in abundance.

Family Range

source

Map of specific collection sites

Specimens of the Arthropod Family Asellidae

1 Male Adult

Male Caecidotea (Cress Bug) Arthropod Adult

3 Pictures

Dorsal view of a Male Caecidotea (Asellidae) (Cress Bug) Arthropod Adult from the Namekagon River in Wisconsin

Collected January 12, 2004 from the Namekagon River in Wisconsin

Added by Troutnut on January 25, 2006

Collected January 12, 2004 from the Namekagon River in Wisconsin and added by Troutnut on January 25, 2006

1 Adult

Caecidotea (Cress Bug) Arthropod Adult

3 Pictures

Dorsal view of a Caecidotea (Asellidae) (Cress Bug) Arthropod Adult from unknown in Wisconsin

Collected January 30, 2004 from unknown in Wisconsin

Added by Troutnut on January 25, 2006

Collected January 30, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006

Discussions of Asellidae

Help to get some specimens of the isopod Caecidotea communis

11 replies

Posted by Leonardo on Mar 28, 2013

Last reply on Mar 29, 2013 by Leonardo

My name is Leonardo García, I am a biologist intern in the National Autonomous University of Mexico and I'm doing my thesis with title "Morphological variation in the genus Caecidotea isopods (Packard, 1871) (Crustacea: Peracarida: Isopoda) of Mexico." Inside the National Collection of Crustacean, Biology Institute (UNAM).

I was wondering if somebody can help me to get some specimens of the specie Caecidotea communis and send them to me to continue with my thesis work. It would help and enrich my study.

Thanks for your attention

Leo

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