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> > A few bugs from the Kinderhook Creek (NY)

Agresens has attached these 2 pictures to aid in identification. The message is below.
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AgresensJune 18th, 2018, 3:57 am
Kinderhook, NY

Posts: 2
Two images - please help identify.

The NYMPH appears to be a Hendrickson?

The DUN was quite large. Seems like it had just hatched with malformed wings. A Drake?

Thanks
TaxonJune 18th, 2018, 9:45 pm
Site Editor
Plano, TX

Posts: 1282
Hi August-

I believe (what you refer to as the dun) is actually a male imago of genus Isonychia

I also believe (what you refer to as a Hendrickson), which is a common name often used for Eastern Ephemerella, is probably of genus Drunella.

The next time you photograph a mayfly nymph, I suggest using a pickle jar lid, and filling it with enough water to completely cover the nymph. That way, the body appendages will stand out, as opposed to being all stuck together.

Roger Rohrbeck
www.FlyfishingEntomology.com
AgresensJune 23rd, 2018, 5:50 am
Kinderhook, NY

Posts: 2
Thank you!

I'm packing my pickle jar lid now.
KonchuJune 27th, 2018, 9:54 am
Site Editor
Indiana

Posts: 493
The nymph looks like it might belong to the genus Maccaffertium (family Heptageniidae). Used to be in Stenonema.

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