Diptera 5 (July 2010) - Epidapus - BugGuide.Net

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Gnats, Gall Midges, and March Flies (Bibionomorpha) » Fungus Gnats and Gall Midges (Sciaroidea) » Dark-winged Fungus Gnats (Sciaridae) » Epidapus

Photo#490631

Copyright © 2011 Mike Ferro

Diptera 5 (July 2010) - Epidapus

Feliciana Preserve, West Feliciana Parish, Louisiana, USA
July 18, 2010

Collected in pitfall trap (5B).

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Contributed by Mike Ferro on 12 February, 2011 - 12:43am
Last updated 28 August, 2014 - 7:04pm

Moved

Moved from Dark-winged Fungus Gnats.

… John F. Carr, 28 August, 2014 - 7:04pm

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Moved

Moved from Pnyxia. I recall reading that there are now two genera with species with no wings and eye bridges, maybe separable by width of eye bridge (1, 2, or 3 facets) and number of palp segments.

… John F. Carr, 18 February, 2011 - 4:56am

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Moved

Moved from ID Request.

Tentative ID. It keys here, but that's really saying what it isn't more than what it is. I presume it has ocelli and a reduced (one segment) palp. And no eye bridge -- if that shadow is an eye bridge it's a different genus.

… John F. Carr, 12 February, 2011 - 3:36pm

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Eye bridge

Hard to tell if there is an eye bridge from the original photo. If I get time I'll toss it back under the scope and find out.

… Mike Ferro, 12 February, 2011 - 3:44pm

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Eye Bridge

There is a sclerotized band stretching from one compound eye to the ocelli and over to the other eye. Figure 5 in Chapter 15 of Manual Nearctic Diptera doesn't show a sclerotized band. I think this might be Epidapus.

… Mike Ferro, 14 February, 2011 - 11:39pm

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Hmmmm,

I would interpret the "shadow" as eyebridge stocked with loose ommatidia. However, a view of palps would be very helpful.

so long,

… Bjoern Rulik, 13 February, 2011 - 3:10am

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Sciaroidea?

Resembles wingless Sciaroidea. Are the antennae broken?

… John F. Carr, 12 February, 2011 - 7:05am

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Antennae

Antennae are broken, but everything else looks good. This is the only specimen I got in the sample (otherwise I would have photographed a better one).

… Mike Ferro, 12 February, 2011 - 3:26pm

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