Salmonflies
Pteronarcys californica
The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
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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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Taxon on May 26, 2018May 26th, 2018, 10:44 am EDT
Hi Cyndi-
Assuming your question relates to the winged lifestages, the most obvious characters that pertains to both sexes and both winged lifestages is that Baetis have oblong hind wings, whereas Callibaetis have more squarish hind wings, and Baetis have short antennae, whereas Callibaetis have longish antennae.
Assuming your question relates to the winged lifestages, the most obvious characters that pertains to both sexes and both winged lifestages is that Baetis have oblong hind wings, whereas Callibaetis have more squarish hind wings, and Baetis have short antennae, whereas Callibaetis have longish antennae.
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