Troutnut Forum > Specimen Discussion > Is this Chloroperlide?
The Specimen
Chloroperlidae (Little Yellows and Little Greens) Stonefly Adult
View 6 PicturesThis specimen was completely green when I collected it from among many others gathered on a midstream rock along with their nymphal shucks (
Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.) early in the morning. There was also a yellow one with them, which I assumed was a different species. Now that I've seen how this one started changing from green to yellow, I have to wonder if they weren't the same species and the yellow one was just older.
View 6 PicturesThis specimen was completely green when I collected it from among many others gathered on a midstream rock along with their nymphal shucks (
Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.
Region: Poconos
Collected May 29, 2007
Added Jun 4, 2007
The Discussion
| Troutnut | June 5th, 2007, 9:41 pm | |
| Fairbanks, AK Posts: 1115 | I just want to double-check this ID, because I've got a couple on-stream pictures of these flies to add. Can anyone confirm? | |
| Jason Neuswanger The Troutnut | ||
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| Taxon | June 5th, 2007, 11:46 pm | |
| Mercer Island, WA Posts: 484 | Jason- I believe so, but am unable to key it without being able to see hind wing venation. Do you have a photo which clearly displays hind wing venation? If I were to guess at this point, it would be Haploperla brevis. However, if you have a photo clearly showing hind wing venation, it can accurately be keyed to (at least) genus. | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
| GONZO | June 6th, 2007, 4:25 pm | |
| "Bear Swamp," PA Posts: 876 | This certainly looks like Chloroperlidae to me, but I've long been curious about the species. The late May/early June emergence of this species has always been heavy in the Brodhead drainage. The fish largely ignore them when the olive morning dun hatch is in progress, but I've had some success imitating them on early June mornings after the main Drunella hatch ends. I like Roger's Haploperla brevis guess, mostly because it was on the short list of species I was considering as candidates. I'd love to know the species ID for sure, but I doubt that the pictures provide the means to take this specimen to that level. | |
