Diptera.info :: Identification queries :: Diptera (adults)
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 Phasia barbifrons
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| Christine Devillers |
Posted on 03-02-2008 19:53
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 Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Is it Phasia barbifrons female ? Belgium, 02-09-2006, size: 3-4 mm, on Sedum Christine Devillers attached the following image:  [131.93Kb] Edited by Christine Devillers on 11-02-2009 16:09 |
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| Zeegers |
Posted on 03-02-2008 22:07
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Member Location: Soest, NL Posts: 19143 Joined: 21.07.04 |
It's Phasia barbifrons indeed. The sexes are very similar in this species. Can't tell from these pics. Theo |
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| Christine Devillers |
Posted on 04-02-2008 19:45
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Thanks for the confirmation Theo. What do you need to tell if it is a male or a female? |
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| Zeegers |
Posted on 04-02-2008 21:12
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Member Location: Soest, NL Posts: 19143 Joined: 21.07.04 |
a view on the genitalia. Which are difficult to see in barbifrons, it would take five times more magnification and right angle. Surprisingly enough, since in most female Phasia the genitalia are very exposed and therefore easy to see. |
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| Christine Devillers |
Posted on 05-02-2008 12:36
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Thanks for those precisions |
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