Diptera.info :: Identification queries :: Diptera (adults)
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 Bibionidae; Bibio
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| kurt |
Posted on 20-05-2013 18:11
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Member Location: Posts: 4340 Joined: 27.11.08 |
What species could this 5 mm female be? I thought of pomonae but coloring on legs does not fit. Photos from 20 may 2013 Kramfors 62 N, E 17 Ångermanland, Sweden. Thanks for your help in advance Regards Kurt Holmqvist kurt attached the following image:  [100.73Kb] |
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| Sundew |
Posted on 20-05-2013 18:51
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3939 Joined: 28.07.07 |
B. pomonae is active much later in summer. Red-legged spring species are B. lanigerus and B. johannis. The females are hardly separable. Also B. femoralis should be kept in mind (http://www.dipter...d_id=20163). Regards, Sundew |
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| kurt |
Posted on 20-05-2013 19:11
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Member Location: Posts: 4340 Joined: 27.11.08 |
Thanks for your help Sundew. What about B. varipes? Is that also a possibility? Kurt Holmqvist |
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| Sundew |
Posted on 20-05-2013 19:52
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3939 Joined: 28.07.07 |
I have not seen this species myself. However, the problem is that your fly is a female. The males can be told apart more easily. Theo Zeegers, who is very good in Bibionids, once said "Not possible to separate lanigerus, varipes, reticulatus." (http://www.dipter...d_id=30037) You can add johannis to the list as well. Look for the male  ! |
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| John Carr |
Posted on 20-05-2013 20:00
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 Super Administrator Location: Colorado, USA Posts: 10696 Joined: 22.10.10 |
The inner spur of the fore leg seems too long for Bibio johannis. |
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| Zeegers |
Posted on 21-05-2013 11:33
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
That is, not possible to separate from picture. Also the light due to the flash might be misleading. The posterior veins seems dark, in which case nigriventris comes to mind. Impossible to judge the antennal length, though. Theo |
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| kurt |
Posted on 22-05-2013 20:11
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Member Location: Posts: 4340 Joined: 27.11.08 |
Thanks to all of you for trying to help. Here comes 2 photos of male from same place but one day later. Is it possible to tell which species this is? kurt attached the following image:  [100.78Kb] |
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| kurt |
Posted on 22-05-2013 20:12
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Member Location: Posts: 4340 Joined: 27.11.08 |
And a more dorsal
kurt attached the following image:  [102.42Kb] |
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| Zeegers |
Posted on 22-05-2013 21:02
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
Yes, that helps This clearly shows the male of Bibio johannis see for a full treatment, thanks to Sundew http://www.diptera.info/forum/viewthread.php?thread_id=54712 Theo |
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