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> > Rhyacophila betteni group

The Specimen

Rhyacophila (Green Sedges) Caddisfly LarvaRhyacophila (Green Sedges) Caddisfly Larva View 7 PicturesDave Ruiter identified this specimen as part of the Rhyacophila betteni group, but with over 20 species it's difficult to narrow down beyond that.
Collected July 25, 2019 from Mystery Creek #249 in Washington
Added to Troutnut.com by on July 26, 2019

The Discussion

CrenoAugust 8th, 2019, 8:02 pm
Grants Pass, OR

Posts: 305
This is one of the Rhyacophila betteni group. The R. betteni group consists of over 20 widespread, western species; common in small to medium, rocky trout streams.
TroutnutAugust 10th, 2019, 9:43 am
Administrator
Bellevue, WA

Posts: 2717
Thanks Dave. Would it be worth sending you these last two Rhyacophilas for species IDs, or are the individual species too poorly described to key out?
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
CrenoAugust 10th, 2019, 1:52 pm
Grants Pass, OR

Posts: 305
Jason - I doubt I can place species names on the larvae. We are still working out the details of the adults. If you preserve material in 90%+ ETOH you can submit to the Barcode of Life Database (BOLD) for dna analysis which is very useful for future larval associations.

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