Chimarra

The Specimen

Microsema (Little Grannoms) Caddisfly Adult

View 5 PicturesThis one has a neat iridescent sheen to its wings.

See the discussion for details on this fly's tentative ID.

Collected May 28, 2007 from Mystery Creek #42 in Pennsylvania
Added to Troutnut.com by on June 4, 2007

The Discussion

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Taxon	June 6th, 2007, 3:20 am
Site Editor Mercer Island, WA Posts: 921	Jason- That would be Chimarra, most likely C. aterrima, but it could also be either C. obscura or C. socia. Based on that neat black egg mass visible in the ventral view photo, it would also appear that it's a female.
	Roger Rohrbeck www.FlyfishingEntomology.com

GONZO	June 6th, 2007, 8:08 am
Site Editor "Bear Swamp," PA Posts: 1636	Although I have no handy key, there are good emergences of Chimarra in most of the medium-to-large Pocono streams in May. It is routine to see them clinging to the underside of low-hanging branches or woody debris along the streams.

Litobrancha	June 12th, 2007, 12:09 pm
Knoxville TN Posts: 51	I don't think this is a philopotamid, which lay their eggs singly instead of in large masses.... It is hard to tell from the picture but I would guess it is Micrasema or Lepidostoma, possibly Helicopsyche.

GONZO	June 12th, 2007, 1:30 pm
Site Editor "Bear Swamp," PA Posts: 1636	Hmmm...there are good populations of Micrasema in the stream this specimen came from. They usually have green bodies when they emerge, but like other Brachycentrids, they probably darken considerably after emergence. That might explain why I hadn't noticed this strange sheen on Chimarra wings before. They usually look more velvety, but I'm always seeing things in Jason's photos that I've never noticed with my (increasingly poor) eyes. Thanks for the tip about the eggs, Lito.

Troutnut	June 12th, 2007, 6:42 pm
The Admin Fairbanks, AK Posts: 2021	OK, I've moved it to Microsema for now.
	Jason Neuswanger The Troutnut

Taxon	June 13th, 2007, 1:04 pm
Site Editor Mercer Island, WA Posts: 921	Litobrancha- What genus would this one be?
	Roger Rohrbeck www.FlyfishingEntomology.com

Litobrancha	June 14th, 2007, 6:55 am
Knoxville TN Posts: 51	taxon i think they got that one right. kinda hard to tell from the pic though.

Creno	December 22nd, 2007, 2:07 pm
Centennial CO Posts: 125	Folks - This one is indeed a difficult one. I would not conclude Micrasema because the photo shows too many spurs. And I would not conclude Philopotamid because of several characters, including the egg mass Litobrancha noted. How about Theliopsyche, a rarely collected Lepidostomatid? At least Theliopsyche has the furry spurs located as in the photos and a long basal antennal segment.

Creno	December 31st, 2007, 7:43 am
Centennial CO Posts: 125	Folks - while I still think this is probably Theliopsyche, there was a brief mention of egg masses in this topic. I just ran into a nice specimen of Apatania incerta with the round egg mass still attached. I was going to attach a photo but couldn't figure out how to do it. Are there instructions/procedures for attaching critter photos or is it not allowed? dave

Taxon	December 31st, 2007, 9:37 am
Site Editor Mercer Island, WA Posts: 921	Dave- The (unassisted) manner of posting a photo is inserting the following markup language, except use braces rather than curly braces: {img src=http://...whatever.jpg} Of course, this requires that the photo already be hosted on a server. Alternatively, if one emails photos to Jason, he will host them on this server, and create a posting for you including the accompanying email verbiage. However, since starting grad school, his response would probably be somewhat slower.
	Roger Rohrbeck www.FlyfishingEntomology.com

Creno	December 31st, 2007, 10:08 am
Centennial CO Posts: 125	Roger - thanks. I don't have server access and I understand the demands of grad school so I will leave the reader to their imagination. The egg mass of Apatania incerta is also spherical. dave

Taxon	December 31st, 2007, 11:21 am
Site Editor Mercer Island, WA Posts: 921	Dave- There are free services like PhotoBucket, which you can use to host photos. I'd certainly like to see any critter photos you have, and I suspect there are others who would as well.
	Roger Rohrbeck www.FlyfishingEntomology.com

Taxon	December 31st, 2007, 2:25 pm
Site Editor Mercer Island, WA Posts: 921	Folks - while I still think this is probably Theliopsyche, there was a brief mention of egg masses in this topic. I just ran into a nice specimen of Apatania incerta with the round egg mass still attached. Creno
	Roger Rohrbeck www.FlyfishingEntomology.com

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