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 Drosophilidae: Cacoxenus indagator? - yes
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| mammut |
Posted on 17-04-2018 21:38
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Member Location: Posts: 121 Joined: 06.12.11 |
This tiny fly (4-5 mm) visited several times a nesting site for bees (Osmia cornuta) situated on my balcony near Bologna, Italy. To me it looks like Cacoxenus indagator - is this the only possible species or are there other species with which it might be confused? Thanks for your help. The pictures were taken on April 7, 2018. Edited by mammut on 21-04-2018 22:02 |
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| mammut |
Posted on 17-04-2018 21:40
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Member Location: Posts: 121 Joined: 06.12.11 |
Photo 2 |
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| mammut |
Posted on 17-04-2018 21:41
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Member Location: Posts: 121 Joined: 06.12.11 |
photo 3 |
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| evdb |
Posted on 17-04-2018 21:41
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 Member Location: Posts: 1342 Joined: 05.12.11 |
No doubt for me but I am not a specialist
Eugene |
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| mammut |
Posted on 17-04-2018 21:41
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Member Location: Posts: 121 Joined: 06.12.11 |
photo 4 |
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| mammut |
Posted on 17-04-2018 21:44
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Member Location: Posts: 121 Joined: 06.12.11 |
photo 5 taken on April 8, 2018 but which should show the same species after a visit in one of the bee's nests |
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| mammut |
Posted on 18-04-2018 22:20
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Member Location: Posts: 121 Joined: 06.12.11 |
Thank you Eugene ! |
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| Ectemnius |
Posted on 20-04-2018 11:32
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Member Location: Posts: 845 Joined: 22.11.11 |
Hello mammut, There are several other species of Cacoxenus in Europe. No known from Italy, but that doesn't tell a lot. I can however count about twelve visible acrostical rows on the scutum in your photo's. That confirms it as Cacoxenus indagator Loew, 1858. The other four European species have ten rows at maximum. Kind regards, Ectemnius |
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| mammut |
Posted on 21-04-2018 22:01
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Member Location: Posts: 121 Joined: 06.12.11 |
Thank you very much Ectemnius for your confirmation and the explanations! kind regards Mammut |
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but don't see the image in the post.
