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Photo#833085
Asilidae: Leptogastrinae - Beameromyia

Asilidae: Leptogastrinae - Beameromyia
Assyria Township, Barry County, Michigan, USA
July 3, 2013
Size: 6-7mm
Although it superficially resembles the Leptogastrinae genus Psilonyx, I believe this specimen belongs to the genus Beameromyia. I'm basing this on the presence of empodia, the transverse band of hairs on the second abdominal tergite, and the slightly more widely spaced eyes. These characters come from couplets 4-5 of the Asilidae key in the Manual of Nearctic Diptera; photos of each are included. This specimen and two others were collected in a funnel trap baited with a lure for walnut twig beetle.

What do you think?

Images of this individual: tag all
Asilidae: Leptogastrinae - Beameromyia Asilidae: Leptogastrinae - Beameromyia Asilidae: Leptogastrinae - Beameromyia Asilidae: Leptogastrinae: Beameromyia? - Beameromyia Asilidae: Leptogastrinae: Beameromyia? - Beameromyia

Moved
Moved from Robber Flies.

This is
Beameromyia. No records in Michigan. Illinois and Iowa have species B. pictipes. Ohio has three species. I am not sure I have a species key for this genus. I have never taken one in my state. Nice work showing the critical characters.

These things are so tiny and elusive that a live shot has not been recorded here. Half the size of some Leptogaster.

This appears to be a male. Can you send me a very detailed close shot of the terminus from lateral position? Or send me the specimen and I will mail it back.

Moved for expert attention
Moved from ID Request.

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