Diptera.info :: Identification queries :: Diptera (adults)
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 Muscidae, which family ?
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| peterbolson |
Posted on 15-06-2010 18:37
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Member Location: Cumbria, UK Posts: 276 Joined: 07.06.10 |
From woodland ride, 10mm long No pd seta on hind tibia and despite a hard look with the microscope I can't see any setulae on the radial node. Santy eye hairs, short hairs on arista. 3 setae on katepisternum, 2 presutural ac and 4 postsutural dc. I'd be grateful for some guidance as to which family to look at. I can post more photos if they would help. Thanks, Peter peterbolson attached the following image:  [76.34Kb] |
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| peterbolson |
Posted on 15-06-2010 18:37
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Member Location: Cumbria, UK Posts: 276 Joined: 07.06.10 |
lateral
peterbolson attached the following image:  [49.22Kb] |
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| Stephane Lebrun |
Posted on 15-06-2010 18:46
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Helina impuncta.
Stephane. |
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| peterbolson |
Posted on 15-06-2010 19:24
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Member Location: Cumbria, UK Posts: 276 Joined: 07.06.10 |
That's great Stephane. I'm gradually collecting photos of different genera. My problem at the moment is getting to a genus - what is is that makes you say just from a photo that it belongs to the Helina genus ? |
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| Stephane Lebrun |
Posted on 15-06-2010 19:36
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Muscidae with stout habitus (Phaoniinae-Mydaeinae) : no pd on distal part of hind tibia, so not Phaonia. Then, heavily dusted body suggests Helina (when abdomen has paired spots it is even more easy). And Mydaea haven't presut. acr.
Stephane. |
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| peterbolson |
Posted on 15-06-2010 20:12
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Member Location: Cumbria, UK Posts: 276 Joined: 07.06.10 |
Thanks for all your help Stephane. So to an extent it's by elimination plus experience. Are these dark marks on T3 & 4 the spots you are referring to ? peterbolson attached the following image:  [48.66Kb] |
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| Stephane Lebrun |
Posted on 16-06-2010 18:03
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
These are, but it raises an unusual case, because Helina impuncta has only rarely a spotted abdomen. Anyway it is H. impuncta.
Edited by Stephane Lebrun on 16-06-2010 19:07 Stephane. |
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