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> > Trichoptera - Hydroptilidae?

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Western Caddisfly adult
Western Caddisfly adult
WiflyfisherJuly 23rd, 2007, 7:06 pm

Posts: 663
The caddisfly in the photo produced a heavy hatch and egg laying on the Henry's Fork River in the riffled water areas. It also appeared to put sticky yellow blobs of eggs all over our waders too!

Any thoughts on what this is?
John S.
GONZOJuly 23rd, 2007, 7:40 pm
Site Editor
"Bear Swamp," PA

Posts: 1681
John, this isn't a hydroptilid; they are very small (under 5mm) and very hairy. It's a hydropsychid, but maybe one of the experts will have a better idea about species.
TaxonJuly 23rd, 2007, 10:27 pm
Site Editor
Royse City, TX

Posts: 1348
I believe it to be a Spotted Sedge (Hydropsyche), likely H. occidentalis, if you encounteded a heavy emergence of them on the Henry's Fork.
Best regards,
Roger Rohrbeck
WiflyfisherJuly 24th, 2007, 5:22 am

Posts: 663
Yes, there was at times a heavy emergence of these caddis on the Fork.

Thank you!
John S.

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