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 is an interesting one. Following the keys in Merritt R.W., Cummins, K.W., and Berg, M.B. (2019) and Jacobus et al. (2014), it keys clearly to Ephemerella. Jacobus et al provide a key to species, but some of the characteristics are tricky to interpret without illustrations. If I didn't make any mistakes, this one keys to Ephemerella mucronata, which has not previously been reported any closer to here than Montana and Alberta. The main character seems to fit well: "Abdominal terga with prominent, paired, subparallel, spiculate ridges." Several illustrations or descriptions of this holarctic species from the US and Europe seem to match, including the body length, tarsal claws and denticles, labial palp, and gill shapes. These sources include including Richard Allen's original description of this species in North America under the now-defunct name E. moffatae in Allen RK (1977) and the figures in this description of the species in Italy.
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Troutnut on Mar 31, 2008March 31st, 2008, 3:37 pm EDT
Hi guys,
I've been seeing a lot of posts and topics (from several users) that are edited to say "double post deleted" or something to that effect when you accidentally click the submit button twice. (My bad for not programming it to ignore extra clicks.)
Anyway, just so you're all aware, you can delete topics and posts you've created by accident. For topics, there's a "Delete Topic" link above the top post on the page. For posts, there's a black trash can in the upper right corner of the post, next to the "edit" scissors. Click that to delete the post.
I've been seeing a lot of posts and topics (from several users) that are edited to say "double post deleted" or something to that effect when you accidentally click the submit button twice. (My bad for not programming it to ignore extra clicks.)
Anyway, just so you're all aware, you can delete topics and posts you've created by accident. For topics, there's a "Delete Topic" link above the top post on the page. For posts, there's a black trash can in the upper right corner of the post, next to the "edit" scissors. Click that to delete the post.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Troutnut and salmonid ecologist
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