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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.

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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Case view of a Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from the Delaware River in New York
PaulRoberts
PaulRoberts's profile picture
Colorado

Posts: 1776
PaulRoberts on Aug 15, 2012August 15th, 2012, 6:08 pm EDT
I believe Lepidostoma has antennae fixed very close and right in front of the eye. I don't see that here. Maybe it's obscured in the image?
Entoman
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Northern CA & ID

Posts: 2604
Entoman on Aug 15, 2012August 15th, 2012, 8:45 pm EDT
Yeah, I can't make them out either, but my eyes are pretty blurry this time of night... The antennae are very hard to make out at any time though, usually looking like a tiny pale dot next to the anterior margin of the eye. There's not much to 'em. In a good microscope photo in lateral view, they look like the plunger end of a very tiny retractable ball point pen to me. For me, the best (and easiest way) to identify them is by their having lateral humps on the first abdominal segment while lacking a dorsal hump. Others either have all three or lack them entirely and the cases are different.
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman
PaulRoberts
PaulRoberts's profile picture
Colorado

Posts: 1776
PaulRoberts on Aug 16, 2012August 16th, 2012, 7:42 am EDT
I see. Found another web image and the antennae are indeed obscure.

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