The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
Option 1 | Option 2 |
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2 small ring sclerites posterodorsally at base of each lateral hump of abdominal segment I (sf 19.285) | 2 or more sclerites dissimilar in shape at base of each lateral hump (sf 19.283) |
Case tubular, slightly curved, tapered, made of mostly of rocks with some small pieces of wood incorporated (sf 19.436) | |
Remaining genera: Desmona and Monophylax | Remaining genera: Chilostigma, Clostoeca, Grensia, and Psychoglypha |
1 Example Specimen![]() This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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Go to Couplet 11 | Go to Couplet 12 |