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Benthosfan has attached these 7 pictures to aid in identification. The message is below.
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Baetidae #1
Baetidae #1
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Baetidae #2
Baetidae #2
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Baetidae #3
Baetidae #3
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Baetidae #4
Baetidae #4
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Baetidae #5
Baetidae #5
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Baetidae #6
Baetidae #6
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Baetidae #7
Baetidae #7
BenthosfanFebruary 1st, 2021, 9:30 am
Posts: 4I have a few unidentified Baetidae from tributaries in Southeastern Oklahoma, specifically the Glover River and Little River. Specimens preserved in ethanol.

Having a hard time distinguishing between Baetis, Accentrella, Accerpenna, etc.
TroutnutFebruary 2nd, 2021, 3:53 pm
Administrator
Bellevue, WA

Posts: 2731
Hi Steve,

I wish I could help more with these. It's almost impossible to key most Baetidae beyond the family level without extreme closeups of some tiny, hard to access parts on the mouth and elsewhere. This board is occasionally visited by experts who might recognize one (at least the genus) based on the general "look." However, that ability comes only from extensive personal experience and can't be gleaned from any available key unfortunately.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
BenthosfanFebruary 5th, 2021, 7:24 am
Posts: 4I will do my best to get higher quality pictures, especially of the underside/mouthparts. Thank you for your time, sir.
PartsmanFebruary 6th, 2021, 6:36 am
bancroft michigan

Posts: 418
Very nice pictures, thanks for sharing. I hope you some answers to your questions.
Mike.
TaxonFebruary 6th, 2021, 10:52 am
Site Editor
Plano, TX

Posts: 1342
Family="Baetidae"
USA_States="OK"

Family Scientific Name

Baetidae Acentrella turbida 2 tails as nymph
Baetidae Acerpenna macdunnoughi 3 tails as nymph
Baetidae Acerpenna pygmaea 3 tails as nymph
Baetidae Anafroptilum minor 3 tails as nymph
Baetidae Apobaetis futilis 2 tails as nymph
Baetidae Baetis bicaudatus 2 tails as nymph
Baetidae Baetis flavistriga 3 tails as nymph
Baetidae Baetis intercalaris 3 tails as nymph
Baetidae Callibaetis floridanus 3 tails as nymph
Baetidae Callibaetis pictus 3 tails as nymph
Baetidae Camelobaetidius mexicanus 3 tails as nymph
Baetidae Camelobaetidius variabilis 3 tails as nymph
Baetidae Diphetor hageni 3 tails as nymph
Baetidae Fallceon quilleri 3 tails as nymph
Baetidae Heterocloeon curiosum 2 tails as nymph
Baetidae Iswaeon rubrolaterale 2 tails as nymph
Baetidae Neocloeon alamance ? tails as nymph
Baetidae Plauditus dubius 2 tails as nymph
Baetidae Plauditus punctiventris 2 tails as nymph
Baetidae Procloeon pennulatum 3 tails as nymph
Baetidae Procloeon rubropictum 3 tails as nymph
Baetidae Procloeon texanum 3 tails as nymph
Baetidae Procloeon viridoculare 3 tails as nymph

Note: there are multiple genera in your images, as some have 2 tails and some have 3 tails
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
TroutnutFebruary 8th, 2021, 10:40 pm
Administrator
Bellevue, WA

Posts: 2731
Benthosfan, even getting high quality pictures won't necessarily make the ID easy. I got a really nice microscope setup myself this fall and still really struggle with the relevant parts of Baetids. For example, it's often not enough to just get an in-focus closeup of the underside of the head: you have to tease out specific parts that might normally be hidden, and photograph them at just the right angle to see the relevant tiny details. There's a patch of tiny setae called the "villipore" on the legs that's also extremely difficult to see, let alone image, with most microscopes.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
BenthosfanApril 2nd, 2021, 7:47 am
Posts: 4Confirmed possible IDs for ...

#1 is Acerpenna pygmaea or Baetis flavistriga complex
#2 is Neocloeon or Procloeon
#3 is Procloeon rubropictum
#4 is Procloeon or Baetis intercalaris complex
#5 is Acerpenna pygmaea or Baetis intercalaris complex
#6 is Acentrella parvula
#7 is Acentrella parvula
TaxonApril 2nd, 2021, 2:22 pm
Site Editor
Plano, TX

Posts: 1342
Confirmed possible IDs for ...

#7 is Acentrella parvula or Oxyethira


Oxyethira a caddisfly genus. Happy April Fools Day?
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
BenthosfanMay 5th, 2021, 5:04 pm
Posts: 4Oops! It was Acentrella parvula

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