Diptera.info :: Identification queries :: Diptera (adults)
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 Sphaeroceridae : Crumomyia fimetaria/roserii
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| Patrik E |
Posted on 02-03-2020 18:39
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Member Location: Middle part of Sweden Posts: 46 Joined: 19.10.15 |
I have tried to determine this Copromyzinae with Pitkins- the lesser dung flies and the key leads me to Crumomyia roserii - 1: Postocular setae in irregular rows. -2: One pair of well-developed setae on postpronotal lobe. - 3: Wings fully developed and hindtibia without anteroventral setae about the middle. -4: It is a small species,2,4-2,5 mm with shining anepisternum and yellow-brown tibiae. But when I compare with pictures of C.roserii it is a black fly (except for the tibiae) and so are all the other european Crumomyia as far as I can see.Where have I gone wrong ? or is my fly newly hatched and not fully coloured yet ? The fly was found in june25,in the middle part of Sweden,on a bucket with nutrition-water for the garden.Lots of horses in the close neighborhood. Patrik E attached the following image:  [192.28Kb] Edited by Patrik E on 03-03-2020 11:44 |
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| Patrik E |
Posted on 02-03-2020 18:43
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Member Location: Middle part of Sweden Posts: 46 Joined: 19.10.15 |
wing
Patrik E attached the following image:  [177.64Kb] |
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| Patrik E |
Posted on 02-03-2020 18:43
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Member Location: Middle part of Sweden Posts: 46 Joined: 19.10.15 |
Postocular setae
Patrik E attached the following image:  [179.92Kb] |
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| Patrik E |
Posted on 02-03-2020 18:44
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Member Location: Middle part of Sweden Posts: 46 Joined: 19.10.15 |
Dorsal view
Patrik E attached the following image:  [193.85Kb] |
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| Patrik E |
Posted on 02-03-2020 18:45
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Member Location: Middle part of Sweden Posts: 46 Joined: 19.10.15 |
anepisternum
Patrik E attached the following image:  [194.48Kb] |
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| daveb21 |
Posted on 02-03-2020 19:33
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Member Location: Norfolk UK Posts: 138 Joined: 30.10.14 |
Hi Patrick, Teneral Copromyzinae are generally this colour, if there is a distinction between the tibia and femora in colour i.e. you can tell the femora will be black/dark and the tibia light then C roserii should be fine. |
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| Patrik E |
Posted on 03-03-2020 11:42
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Member Location: Middle part of Sweden Posts: 46 Joined: 19.10.15 |
Thanks for the quick reply and for explaining the pale colour ! There is no obvious colour difference tibia/femora and even the anepimeron is mostly polished and shining,so this should be a teneral C.fimetaria,the species closest to C.roserii in the key. Best Regards Patrik |
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