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.
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This specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.
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Caddisfly Species Lepidostoma podagrum (Little Brown Sedges)
This species can be distinguished from other Lepidostoma by its swollen & scaly foretibiae. This is an important species in some western locales and often precipitates excellent angling opportunities. See the Lepidostoma genus hatch page for information on habitat and life history.
Species Range
Specimens of the Caddisfly Species Lepidostoma podagrum
1 Male Adult
1 Female Adult
These specimens are still alive, just very cold, so the colors are accurate. I put them in the freezer for a bit to settle them down and overdid it a little:)
2 Larvae
The photo of the specimen cased is alive. The photo of the uncased larva is the same specimen taken after it was preserved in its case. Unfortunately, there was a lot of pigment transfer making the specimen look olivaceous. In life it was grayish white as shown in the first photo.
Start a Discussion of Lepidostoma podagrum
Caddisfly Species Lepidostoma podagrum (Little Brown Sedges)
Species Range
Common Names
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by McLachlan (1871)