Diptera.info :: Identification queries :: Diptera (adults)
 Bibio - but which specie?
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| ErikBo |
Posted on 14-05-2026 09:00
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Member Location: Posts: 4 Joined: 24.09.25 |
Can anyone help on identification of which specie of this Bibio it is? Pls also indicate what items to look for to distinguish the different species? The insect was observed a warm day early may in south Sweden. /Thanks ErikBo attached the following image:  [268.11Kb] |
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| ErikBo |
Posted on 14-05-2026 09:46
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Member Location: Posts: 4 Joined: 24.09.25 |
.. a second image - side view
ErikBo attached the following image:  [156.85Kb] |
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| John Carr |
Posted on 14-05-2026 18:21
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 Super Administrator Location: Colorado, USA Posts: 10670 Joined: 22.10.10 |
Structurally, Bibio species are distinguished by the relative lengths of the base of Rs and the r-m crossvein (usually about equal, sometimes much different), the form of the male hind basitarsis (long and slender to short and thick), and the relative lengths of the two spurs at the tip of the fore tibia (inner very short to as long as the outer). |
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| ErikBo |
Posted on 14-05-2026 19:39
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Member Location: Posts: 4 Joined: 24.09.25 |
Thanks John for info, I realise the photo is too coarse to make an id specification. Thanks for enlightening me. BR Erik |
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