Fishfly - Nigronia fasciata

Moved

… john and jane balaban, 23 June, 2008 - 6:02pm

Nigronia fasciatus--acc. to reference

Extensive white on the forewing shows it is N. fasciatus, according to Megaloptera and Aquatic Neuroptera of Florida. (1)

According to the same reference, this should be a female, having serrate antennae, male having somewhat pectinate.

Patrick Coin
Durham, North Carolina

… Cotinis, 10 November, 2004 - 10:11pm

Oh, I may be jumping to conclusions

That white area on the forewing is rather variable. It looks like you need to see the hindwing in the spread specimen to be sure. Compare this photo of N. serricornis from this page from Insects of Quebec.

So I'm not sure on this one. A project for all of us for next spring--capture some of these and look at the hindwings.

Patrick Coin
Durham, North Carolina

… Cotinis, 5 January, 2006 - 11:06am

Nigronia fishfly?

I've always had trouble with these things.
Milne and Milne (1) do discuss and illustrate dobsonflies and fishflies. They say, p. 521: "all dobsonflies and some fishflies have milky or clear wings, but there are also fishflies with black or smoky wings."

Members of genus Chauliodes are called "fishflies". Members of genus Nigronia, are also called "fishflies".
Insects of Cedar Creek has photos of a species. They also show Chauliodes rastricornis.

So I'm sorta guessing this is a "Nigronia" fishfly. Hmm.
Another reference I looked at said rear edges of Dobsonfly head were angled, of fishflies, rounded. Hmm.

OK, a very good page of neuroptera is at Insects of Quebec. Look at the Nigronia on that page--looks like your critter.

Patrick Coin
Durham, North Carolina

… Cotinis, 8 June, 2004 - 3:47pm

Nigronia

Nice! I'll update the title...thanks Pat!

… Tony DiTerlizzi, 8 June, 2004 - 4:30pm

PS- it was missing it's upper left wing, which was probably nipped off by a bird.

… Tony DiTerlizzi, 8 June, 2004 - 3:32pm