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Pdcox has attached these 2 pictures to aid in identification. The message is below.
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PdcoxOctober 30th, 2019, 8:07 am
Kansas city

Posts: 6
Hi, just a rookie here. Found this bug in a mountain freestone stream central Colorado. Curious about the fed/orange bands around body. Any help in ID?
Thanks
CrenoOctober 30th, 2019, 10:29 am
Grants Pass, OR

Posts: 296
the red spots look like mites. Fairly common on aquatic insects
TaxonOctober 30th, 2019, 11:39 am
Site Editor
Plano, TX

Posts: 1299
Hi Paul-

I believe the stonefly nymph you found in a central Colorado stream to be of family Perlodidae. With regard to what you describe as the orange bands, I suspect that to be a parasitic infestation of orange-colored water mites.
Roger Rohrbeck
www.FlyfishingEntomology.com
PdcoxOctober 30th, 2019, 1:26 pm
Kansas city

Posts: 6
thank you
PdcoxOctober 30th, 2019, 1:27 pm
Kansas city

Posts: 6
thanks
MartinlfNovember 19th, 2019, 6:55 pm
Moderator
Palmyra PA

Posts: 2936
I suspect that to be a parasitic infestation of orange-colored water mites.


Yikes!!

Hey Roger, how the heck are you? Well, I hope.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Jmd123November 20th, 2019, 11:09 am
Oscoda, MI

Posts: 2385
I can see 'em...would you all believe I have seen the red mites on water scorpions? As in Ranatra fusca, which looks for all the world like an aquatic preying mantis...

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
MartinlfNovember 20th, 2019, 9:33 pm
Moderator
Palmyra PA

Posts: 2936
Had to look that one up. Cool.

https://www.psychoticnature.com/photo/2667-brown_waterscorpion-ranatra_fusca
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
TaxonDecember 5th, 2019, 11:57 am
Site Editor
Plano, TX

Posts: 1299
I suspect that to be a parasitic infestation of orange-colored water mites.


Yikes!!

Hey Roger, how the heck are you? Well, I hope.



Hi Louis-

I'm fit as a fiddle, and happy as a clam at high tide. Thanks for inquiring.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
MartinlfDecember 8th, 2019, 1:32 pm
Moderator
Palmyra PA

Posts: 2936
Glad to hear it, Roger. Hope you have a great holiday season. All best to you,
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
TaxonDecember 8th, 2019, 9:41 pm
Site Editor
Plano, TX

Posts: 1299
Likewise, Louis.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

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