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Photo#40523
Nigronia serricornis589 - Nigronia serricornis - male - female

Nigronia serricornis589 - Nigronia serricornis - Male Female
Promised Land State Park, Pike County, Pennsylvania, USA
May 29, 2004
Nigronia serricornis perhaps?

Just wanted
to say what a neat image this is.

 
Here is an image
of Nigronia serricornis. They do look alike, but I don't know if there are others that also look like this.

 
Key to two species
There are only two species in the genus, there is a key on the genus guide page. A key point is the color of the area on the inside (anal region) of the hindwing. It is white in fasciatus, all dark in serricornis. I think you can see an all-dark area on the male in this photo, making the happy couple serricornis. The pattern on the wing of the female also looks consistent with serricronis. Reference for this is on the guide page, Megaloptera of Florida, which has detailed diagrams.

Patrick Coin
Durham, North Carolina

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