Diptera.info :: Identification queries :: Diptera (adults)
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 Cylindromyia sp.
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| Simon Thevenin |
Posted on 10-09-2020 15:27
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Member Location: Rognes Posts: 14 Joined: 03.07.20 |
Hello everyone, I found 2 Cylindromyia sp. in copula, in 04101 Lardiers, France, 31/07/2020 I think this is C. brevicornis because of the presence of long bristles on the postero-ventral part of segment 2 of the abdomen, I would appreciate confirmation or correction Simon Thevenin attached the following image:  [271.81Kb] |
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| Simon Thevenin |
Posted on 10-09-2020 15:30
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Member Location: Rognes Posts: 14 Joined: 03.07.20 |
On this picture we can see the distance between r-m and m-cu in the range 3.2 to 4 times the distance between m-cu and the bend of the median, so C. brevicornis or not ?
Simon Thevenin attached the following image:  [241.88Kb] |
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| Simon Thevenin |
Posted on 15-10-2020 16:20
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Member Location: Rognes Posts: 14 Joined: 03.07.20 |
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| Zeegers |
Posted on 15-10-2020 17:44
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Member Location: Soest, NL Posts: 18825 Joined: 21.07.04 |
So, tergite 2 is actually syntergite 1&2, hnece, the first visible tergite. You are looking at tergite 3. There are no bristles on syntergite 1&2 and also other features point to C. brassicaria. Brassicaria is (very) common and brevicornis pretty rare, so this makes sense. Theo |
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| Simon Thevenin |
Posted on 09-12-2020 18:34
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Member Location: Rognes Posts: 14 Joined: 03.07.20 |
Ok thank you for clarification ! |
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