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> > large free living caddis rhyacophila?

Kjfeen has attached this picture to aid in identification. The message is below.
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KjfeenFebruary 20th, 2024, 8:26 pm
Posts: 1This was a large free living caddis that I found in the Muskegon River in Michigan. It was approximately an inch in length. I was wondering if you could please ID? Thanks!
TaxonMarch 3rd, 2024, 8:35 am
Site Editor
Royse City, TX

Posts: 1350
Hi Kjfeen-

Gorgeous image. I suspect that it may be Rhyacophila fuscula.
Best regards,
Roger Rohrbeck
TaxonMarch 21st, 2024, 10:34 am
Site Editor
Royse City, TX

Posts: 1350
Hi Mark,

Thanks for the correction. Although was bothered by its vertical hump, I didn't realize that eliminated the possibility of it being a free-living caddisfly 🙂

Best regards,



On 03/19/2024 8:39 PM CDT Mark Melton wrote:

I noticed you identified a caddisfly larva in the Troutnut Forum as a Rhyacophila species. It appears to be a Phryganeidae species. It has a dorsal and lateral humps which would be pointless if it didn't live in a case. Also Phryganeidae larvae are quick to leave their cases when stressed. There are several good photos in Troutnut which point towards Phryganeidae.

Best regards,
Roger Rohrbeck

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