Diptera.info :: Identification queries :: Diptera (adults)
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 Could this be Anthomyiidae?-->No, Fanniidae!
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| guplox |
Posted on 25-02-2022 04:52
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Member Location: east China (Zhejiang) Posts: 451 Joined: 09.02.18 |
I misidentified my previous picture (https://diptera.i...ost_435288) as a Lauxannidae. This one has similar body color but by a closer examination it has some noticeable differences. The scutellum is subtriangular (subrectangular for previous one) and the head has more bristles (obviously in the lateral view). Could this be an Anthomyiidae? Many thanks in advance!
guplox attached the following image:  [67.44Kb] Edited by guplox on 26-02-2022 01:53 |
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| guplox |
Posted on 25-02-2022 04:52
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Member Location: east China (Zhejiang) Posts: 451 Joined: 09.02.18 |
A lateral view
guplox attached the following image:  [78.91Kb] |
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| John Carr |
Posted on 25-02-2022 12:24
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 Member Location: Massachusetts, USA Posts: 9841 Joined: 22.10.10 |
Fanniidae |
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| guplox |
Posted on 25-02-2022 13:05
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Member Location: east China (Zhejiang) Posts: 451 Joined: 09.02.18 |
Thank you John very much for the correction! Alas, so I made another misidentification. I'll explore this new direction.  |
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| tristram |
Posted on 25-02-2022 18:30
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Member Location: Reading, UK Posts: 1329 Joined: 27.06.10 |
In Fanniidae this vein is straight. In Anthomyiidae and Muscidae (except Hydrotaea) it is more curved. tristram attached the following image:  [33.82Kb] Edited by tristram on 25-02-2022 18:36 |
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| tristram |
Posted on 25-02-2022 18:36
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Member Location: Reading, UK Posts: 1329 Joined: 27.06.10 |
In Fanniidae these two spines are directly above each other. In Muscidae the upper one, if its present, points more to the rear (except Thricops). I can't remember exactly how these go in Anthomyiidae but they often have 3 or more spines in this line. tristram attached the following image:  [28.3Kb] |
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| John Carr |
Posted on 25-02-2022 20:19
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Member Location: Massachusetts, USA Posts: 9841 Joined: 22.10.10 |
tristram wrote: In Fanniidae this vein is straight. In Anthomyiidae and Muscidae (except Hydrotaea) it is more curved. Calythea (Anthomyiidae) also has the vein straight. These are small flies found on herbivore dung. |
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| guplox |
Posted on 26-02-2022 01:52
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Member Location: east China (Zhejiang) Posts: 451 Joined: 09.02.18 |
Thank you Tristam and John for the very helpful diagnostic characters of Faniidae and related families! Looks like a very easy to apply guide on distinguishing them from one another!  |
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| guplox |
Posted on 26-02-2022 02:32
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Member Location: east China (Zhejiang) Posts: 451 Joined: 09.02.18 |
I did a search. The most often seen Fanniidae in early spring in east China is Fannia prisca. Judging from the general appearance, my pictures could be this species. |
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but don't see the image in the post.