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Photo#1068066
Nymph? - Baetis brunneicolor

Nymph? - Baetis brunneicolor
47.619638° -52.692664° (WGS84), Logy Bay, Northeast Avalon, Newfoundland/Labrador, Canada
May 16, 2015
Size: 9mm head to body rear.
Caught in a dip net from a sweep of a tiny stream. Photos were taken while it was under water.

Images of this individual: tag all
Nymph? - Baetis brunneicolor Nymph? - Baetis brunneicolor Nymph? - Baetis brunneicolor Nymph? - Baetis brunneicolor

Moved
Moved from Mayflies.

looks like a mature (female) baetid larva
Moved from ID Request.

 
Baetis tricaudatus maybe?
Someone on another forum felt it looked like Baetis tricaudatus. Any comment on that thought?

Also, with the aquatic stages of flying insects, what is the difference between naiad, nymph, and larva? Do any of these insects pupate underwater? How do I know when to use which word? Thanks.

 
Baetis brunneicolor
Hi Mardon-

I believe it to be a Baetis brunneicolor female nymph, which (to the best of my knowledge) is not a Baetis species that has not been identified as residing in Newfoundland/Labrador.

In answer to your question, the terms naiad and nymph are interchangeable, as both refer to the immature lifestage of an insect which undergoes incomplete metamorphosis, whereas the terms larva and pupa refer to the lifestages of an insect which undergoes complete metamorphosis. Hope this helps.

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