Diptera.info :: Identification queries :: Diptera (adults)
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 Dialysis sp. (Xylophagidae) from USA
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| Isidro |
Posted on 17-08-2019 20:35
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Member Location: Zaragoza, Spain Posts: 2070 Joined: 26.04.07 |
Boston, Massachusetts. 24th July 2019. On a forest edge. Any help with specific ID appreciated! Thanks!   |
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| Isidro |
Posted on 26-08-2019 08:01
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Member Location: Zaragoza, Spain Posts: 2070 Joined: 26.04.07 |
Hello! Nobody? Please help! |
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| John Carr |
Posted on 26-08-2019 14:00
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 Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
Eastern species in the revision by Webb (1978): D. elongata has broad dark band along basal margins of tergites and cell m3 absent. D. fasciventris has broad dark band along basal margins of tergitess and cell m3 present or rarely reduced. D. rufithorax has median spots at bases of tergites not reaching lateral margins and cell m3 present. |
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| Isidro |
Posted on 26-08-2019 22:47
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Member Location: Zaragoza, Spain Posts: 2070 Joined: 26.04.07 |
Thanks John. D. rufithorax can be discarded then. Can you give me a link to a image of a wing where cell m3 is signed? I looked at a general fly venation nomenclature, but the cells are not named, only the veins... |
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| John Carr |
Posted on 26-08-2019 22:56
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Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
The short stub vein off the discal cell only in the left wing of this fly is vein M3 which forms the forward edge of cell m3 when present https://bugguide....04/bgimage |
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| Isidro |
Posted on 26-08-2019 23:15
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Member Location: Zaragoza, Spain Posts: 2070 Joined: 26.04.07 |
Thanks John! Sadly in my image it's difficult to interpret, but I think that vein M3 would be as marked in red here. I think that this vein is absent, what would make this D. elongata... right? Or it's too risky to put this name? |
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| John Carr |
Posted on 27-08-2019 01:14
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Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
Isidro wrote: Thanks John! Sadly in my image it's difficult to interpret, but I think that vein M3 would be as marked in red here. I think that this vein is absent, what would make this D. elongata... right? Or it's too risky to put this name? The red line is where M3 would be. |
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