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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This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.
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Green Weevils
This common name refers to only one genus. Click its scientific name to learn more.
Beetle Genus Polydrusus
These are often called Green Weevils.
This is an iridescent green terrestrial beetle. They're common in northern Wisconsin's forests during the middle of summer, and I found them on the water's surface more than any other terrestrial insect. I saw the trout take a few and caught some trout on an imitation.