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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.

Dorsal view of a Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
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.
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Amphizoa Beetle Larva Pictures

This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).

Ventral view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
Ruler view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington The smallest ruler marks are 1 mm.

This beetle was collected from Sears Creek in Washington on May 29th, 2023 and added to Troutnut.com by Troutnut on June 10th, 2023.


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Amphizoa Beetle Larva Pictures

Taxonomy
Collection details
Location: Sears Creek, Washington
Date: May 29th, 2023
Added to site: June 10th, 2023
Author: Troutnut
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