Diptera.info :: Identification queries :: Diptera (adults)
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 spring Bibionidae, Hungary > B.femoralis
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| jaurinum |
Posted on 19-03-2009 17:20
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 Member Location: Posts: 94 Joined: 08.08.07 |
Hello! Could it be the male of Bibio johannis ? Size: ~10mm Locality: NW-Hungary; Habitat: open sandy grassland Date: 19.03.2009. Sorry for the bad quality of pictures. jaurinum attached the following image:  [135.41Kb] Edited by jaurinum on 31-03-2009 21:26 |
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| jaurinum |
Posted on 19-03-2009 17:23
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Member Location: Posts: 94 Joined: 08.08.07 |
view 2
jaurinum attached the following image:  [191.17Kb] |
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| pwalter |
Posted on 19-03-2009 18:07
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 Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
Compared to my recently posted specimen, it surely is B johannis male. |
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| jaurinum |
Posted on 19-03-2009 19:20
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Member Location: Posts: 94 Joined: 08.08.07 |
Your second picture (15. March) is great, now I see the identity. Thank you Walter. |
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| Colobo |
Posted on 30-03-2009 19:42
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Member Location: Switzerland Posts: 85 Joined: 03.05.07 |
The photograph 2 is not Bibio johannis, but B. femoralis, a much rarer Central and South-Eastern European species, which may appear very early in the spring, even in February in some regions. Notice the pear-shaped first tarsomere of hind legs which is very characteristic for this species. In contrast, the first tarsomere of B. johannis although also inflated is parallel-sided (compare with photograph 3 of recent post by Andreas Haselboeck, which is clearly b. johannis). The photo graph 1 above may also be B, femoralis but hind tarsi are not well visible and the identity of this specimen is not certain. On the other hand, photograph 2 of recent post of P. Walter is also clearly B. femoralis, and not B. johannis. |
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| jaurinum |
Posted on 31-03-2009 21:32
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Member Location: Posts: 94 Joined: 08.08.07 |
Thank you very much for the detailed and interesting answer. The two pictures are two specimen, so the first could be B. johannis and femoralis as well (I have not got better photo). I am lucky with the second one. Edited by jaurinum on 31-03-2009 21:35 |
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