Diptera.info :: Identification queries :: Diptera (adults)
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 small Phasia with grey back
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| Sundew |
Posted on 11-07-2008 23:12
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
Hi, Yesterday I saw a small Phasia on milfoil inflorescences. The thorax was black, but the last tergites were grey. Can Phasia obesa be thus variable? Thanks, Sundew Sundew attached the following image:  [176.52Kb] |
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| ChrisR |
Posted on 12-07-2008 09:00
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 Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
The small Phasia spp. (barbifrons, obesa & pusilla) can be variable in the dusting on their abdomens. But the key feature for P. obesa is that the thorax should have dusting - abdomenal dusting isn't important. This fly looks like Phasia pusilla to me - the face is very silvery and I can't see a yellow haltere  |
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