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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Alderflies, Dobsonflies, and Fishflies (Megaloptera) » Dobsonflies and Fishflies (Corydalidae) » Gray Fishflies (Neohermes)
Photo#189403
Fishfly ? - Neohermes
Copyright © 2008 Lew Scharpf

Fishfly ? - Neohermes
Auburn, Lee County, Alabama, USA
June 8, 2008
Size: 35 mm
I believe this is a fishfly, possibly Neohermes angusticollis This specimen was attracted to a lighted deck. Possibly a female due to lack of hairy antennae. Would appreciate a confirmation or other possibilities.
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Contributed by Lew Scharpf on 9 June, 2008 - 10:32pm
Last updated 25 June, 2008 - 10:46pm

Neohermes
Yes, that is a Neohermes, and I think you are right about the gender, though it is hard to tell without a real close-up of the antennae.
Presumably it is Neohermes angusticollis, which seems to be the (only?) one from the Southeast, but I don't know how well the taxonomy is known.
… Cotinis, 10 June, 2008 - 2:12am login or register to post comments

 
Neohermes
On closer inspection, I believe this specimen is a male due to the erect hairs present on each segment. The hairs can be faintly seen in this image when enlarged.
… Lew Scharpf, 10 June, 2008 - 3:47pm login or register to post comments

 
caution, perhaps
I've verified a couple of these by looking at genitalia, and the female does have short hairs on the antennae--the males just have longer ones, and they are more clustered. Here is what I think are correctly-labeled details of the antennae:
female/male
/
… Cotinis, 10 June, 2008 - 5:21pm login or register to post comments

 
Neohermes
Thanks, Patrick, for your comments. I am on the Staff at Auburn University and will look into the taxonomy a little further with one of my entomologist colleagues.
… Lew Scharpf, 10 June, 2008 - 1:55pm login or register to post comments

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