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Diptera.info :: Identification queries :: Diptera (adults)
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Drosophila_>Hirtodrosophila confusa
nielsyese
#1 Print Post
Posted on 04-03-2024 13:53
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Collected in the month of August on a mushroom in a forest in the Netherlands. Any ideas?
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Edited by nielsyese on 05-03-2024 11:14
Best wishes, Niels-Jan Dek
 
nielsyese
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Posted on 04-03-2024 13:53
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2nd picture
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Best wishes, Niels-Jan Dek
 
nielsyese
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Posted on 04-03-2024 13:54
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the wing
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Best wishes, Niels-Jan Dek
 
nielsyese
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Posted on 04-03-2024 13:54
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abdomen
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nielsyese
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Posted on 04-03-2024 13:54
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lateral view
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Best wishes, Niels-Jan Dek
 
nielsyese
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Posted on 04-03-2024 15:33
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It is a male, by the way
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Jan Maca
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Posted on 04-03-2024 17:16
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Apparently lacking preapical setae on tibiae, thus Hirtodrosophila. Most probably H. confusa. Tip of aedeagus looks differently when seen in various aspects; closer study of micropreparation would allow precise identification.
 
nielsyese
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Posted on 05-03-2024 10:42
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There are indeed no preapical setae, only apical setae. As far as I could find, the other European species are H. trivittata, H. oldenbergi and H. lundstroemi. The first one looks very different. Online, I found a key by Okada (1967) for the Old World species, but I don't know if this key is still recent. As the mesonotum is unicolorous, by this key it would exclude H. oldenbergi and H. lundstroemi.

Unfortunately, this key doesn't illustrate the genitalia of H. confusa. As you asked, I took pictures of the aedeagus. This is the aedeagus in lateral view. I hope you can confirm the species.
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nielsyese
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Posted on 05-03-2024 10:43
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And this is the tip of the aedeagus in dorsal view (not 100% dorsal, it is a little bit shifted)
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Paul Beuk
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Posted on 05-03-2024 10:59
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This is an exact match with H. confusa as illustrated by B├Ąchli & Vilela (2007: Photomicrographs of the male terminalia of Scandinavian Drosophilidae (Diptera). - Mitteilungen der Schweizerischen Entomologischen Gesellschaft 80(3-4): 231-246. http://doi.org/10.5169/seals-402949
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nielsyese
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Posted on 05-03-2024 11:14
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Thanks for the confirmation Paul!
Best wishes, Niels-Jan Dek
 
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