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.

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Glossosoma (Little Brown Short-horned Sedge) Caddisfly Larva Glossosoma (Little Brown Short-horned Sedge) Caddisfly Larva

Dorsal view of a Glossosoma (Glossosomatidae) (Little Brown Short-horned Sedge) Caddisfly Larva from the Yakima River in Washington

I caught this tiny larva without a case, but it seems to key pretty clearly to to Glossosomatidae. From there, the lack of sclerites on the mesonotum points to either Glossosoma or Anagapetus. Although it's difficult to see in a 2D image from the microscope, it's pretty clear in the live 3D view that the pronotum is only excised about 1/3 of its length to accommodate the forecoxa, not 2/3, which points to Glossosoma at Couplet 5 of the Key to Genera of Glossosomatidae Larvae.

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.

More detailed ID?

Female Neophylax (Autumn Mottled Sedge) Caddisfly Adult

20 Pictures

Lateral view of a Female Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Adult from Mystery Creek #43 in New York

This large caddisfly looks really neat close-up.

Collected September 18, 2006 from Mystery Creek #43 in New York

Added by Troutnut on October 4, 2006

Collected September 18, 2006 from Mystery Creek #43 in New York and added by Troutnut on October 4, 2006

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Oct 4, 2006October 4th, 2006, 1:08 pm EDT

I took lots of pictures of this large caddisfly hoping one of the caddis gurus here can identify it to a more detailed level than I. I was able to follow the key in Merritt & Cummins through to Phryganeidae, though I might have made a mistake.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Vshivkova
Posts: 2

Vshivkova on Nov 18, 2006November 18th, 2006, 11:57 am EST

It is not Limnephilidae, I guess it is some of Neophylax or other Thremmatinae. My reasons:a) color pattern look as in many Neophylax; at the base of hind leg spurs the only one black spine (in Limnephilidae - two sines; in Thremmatinae - 0 or one); 2) female genitalia is not as in Limnephilidae s.str.