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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As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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This topic is about the Mayfly Species Eurylophella temporalis
Example specimens
Homer47
Posts: 1
Posts: 1
Homer47 on Sep 5, 2012September 5th, 2012, 5:06 pm EDT
Looks like an imitation would be about a #10 or #8 dark brown nymph pattern. I'm down here in north Fla and trying to match the hatch in the far north central part of the state, mostly to fool the bream. Any ideas or help would be appreciated. I found two patterns so far that seem to work- a little brown nymph with a rusty brown/orange thorax(maybe this is a good representation of the E. Temporalis), and a size 12 buzzer nymph with black body, peacock thorax and white breathing filament. The bream seemed to agree with that choice. I would like to try and copy more local insects as I figure out what they are.There are dragonflies and damselflies and mosquitoes. I could start there.
Taxon on Sep 5, 2012September 5th, 2012, 6:11 pm EDT
Hi Homer47-
Welcome to the forum, and congratulations on your first post. At 10-11 mm, mature Eurylophella temporalis nymph would be more like size #12. Good luck with your experimental development of patterns to attract Bream, and be sure to keep us posted.
Welcome to the forum, and congratulations on your first post. At 10-11 mm, mature Eurylophella temporalis nymph would be more like size #12. Good luck with your experimental development of patterns to attract Bream, and be sure to keep us posted.
Sayfu
Posts: 560
Posts: 560
Sayfu on Sep 5, 2012September 5th, 2012, 10:12 pm EDT
I'm bettin a standard nymph shape such as a Hare's Ear with small diameter rubber legs does the trick on Bream.
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