Diptera.info :: Identification queries :: Diptera (adults)
 Chyromya? Sapromyza?
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| Sundew |
Posted on 14-12-2007 00:53
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3939 Joined: 28.07.07 |
Hello, This fly is obviously an Entomophthora victim according to the swollen abdomen and the conidia that stick to the scutellar setae. The legs, somewhat damaged, are hairy but show no spurs or strong bristles. My guess is Sapromyza (Lauxaniidae), but sound objection is gratefully accepted, too! Sundew Sundew attached the following image:  [174.8Kb] Edited by Sundew on 14-12-2007 15:36 |
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| Sundew |
Posted on 14-12-2007 00:53
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3939 Joined: 28.07.07 |
More details.
Sundew attached the following image:  [164.31Kb] |
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| Paul Beuk |
Posted on 14-12-2007 07:57
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
You don't mention size but this looks like Chyromya flava to me. That should be only a few mm big, Sapromyza is bigger.
Paul - - - - Paul Beuk on https://diptera.info |
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| David Gibbs |
Posted on 14-12-2007 10:19
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 Member Location: Bristol, UK Posts: 833 Joined: 17.06.06 |
I agree with Paul that this is Chyromya but it is a female so cannot be named to species, i know of no characters to separate flava from femorella and britannica is also very similar in this sex. having said that i am not convinced by that flava and femorella males can be separated, thay are probably conspecific. |
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| Paul Beuk |
Posted on 14-12-2007 11:01
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Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Paul Beuk wrote: .. this looks like Chyromya flava to me. I covered my ass. 
Paul - - - - Paul Beuk on https://diptera.info |
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| Andrzej |
Posted on 14-12-2007 11:27
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Member Location: Poland Posts: 2428 Joined: 05.01.06 |
Paul ID is OK !, Andrzej  |
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| David Gibbs |
Posted on 14-12-2007 12:59
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Member Location: Bristol, UK Posts: 833 Joined: 17.06.06 |
Andrzej you sound very confident! i have done some little research into this genus and was unable to find characters to separate female flava and femorellum , and even males semed to be no more than a cline (but this is not conclusive), there certainly do not seem to be any genetalaic differences. however, it is possible that my failure here is because i have never seen a genuine flava, all British specimens being referable to femorellum. i would be most grateful if you could let me know how i might distinguish these two species 
Edited by David Gibbs on 14-12-2007 13:44 |
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| Sundew |
Posted on 14-12-2007 15:32
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3939 Joined: 28.07.07 |
Dear Paul, you wrote You don't mention size but in all my stereomicroscopic pics I give a mm scale bar (see uppermost left pic) for comparison !I am looking forward to a final statement, otherwise I name the fly Chyromya cf. flava. Sundew Edited by Sundew on 14-12-2007 15:34 |
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