Diptera.info :: Identification queries :: Diptera (adults)
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 Hydrotaea for ID Belgium 2024-05-22
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| Tetrao |
Posted on 22-05-2024 20:39
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 Member Location: Belgium, Wanze Posts: 322 Joined: 14.06.18 |
Hi everyone !!! I pictured this Hydrotaea in my garden on 2024-05-22. I could measure it on picture : 7,0mm Is it possible to ID it up to the species ???       Thank you for reading and / or commenting or ID !!! Have a good day, Didier Edited by Tetrao on 23-05-2024 12:19 |
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| John Carr |
Posted on 22-05-2024 22:08
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 Member Location: Massachusetts, USA Posts: 10031 Joined: 22.10.10 |
Hydrotaea? |
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| Tetrao |
Posted on 23-05-2024 07:35
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Member Location: Belgium, Wanze Posts: 322 Joined: 14.06.18 |
Thank you very much, John ! I’ll look in this direction … Have a good day today !!! Didier |
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| Iain MacGowan |
Posted on 23-05-2024 10:32
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 Member Location: Perth, Scotland Posts: 445 Joined: 25.11.04 |
The pro- thoracic suture ( the obvious lateral crease on the anterior third of the thorax) is clearly evident in photo 1. So its definitely not Lonchaeidae. I would ah agree with Hydrotea
Iain MacGowan |
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| Tetrao |
Posted on 23-05-2024 12:16
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Member Location: Belgium, Wanze Posts: 322 Joined: 14.06.18 |
Thank you Iain, I definitively agree with Hydrotea too !!! I’m now searching for the ID to species, I’ve tried the Fonseca key, but I arrived at H. nidicola Which is a British and German species but we haven’t it in Belgium nor in The Netherlands nor in France … Have a good day today, Didier |
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| John Carr |
Posted on 23-05-2024 14:42
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Member Location: Massachusetts, USA Posts: 10031 Joined: 22.10.10 |
There are a few species with a long, shining frontal triangle. Hydrotaea aenescens strikes me as the most likely. |
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| Tetrao |
Posted on 23-05-2024 18:38
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Member Location: Belgium, Wanze Posts: 322 Joined: 14.06.18 |
Thank you very much, John !!! I’ll have a look for this species… I’ve already seen that some specimen where pictured and / or collected in The Netherlands !!! Have a good day, Didier |
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| Tetrao |
Posted on 24-05-2024 13:46
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Member Location: Belgium, Wanze Posts: 322 Joined: 14.06.18 |
I'm back with new food ... I read a paper saying that there has been a problem ! 1. Fonseca and Séguy didn't call Hydrotaea aenescens as it is now, they both put this species in the Ophyra genus . So many specimen in Belgium before 1970 where not named Hydrotaea aenescens but Ophyra capensis. Both species are really "the same" except for details (Fonseca) Ophyra capensis : Squamae white with whitish border and fringe. Presutural dorsocentrals and acrostichals hardly distinguishable from thoracic hairs. 4,5-5,5 mm and for females : " frontal triangle extending to lunule. " There were 2 Ophyra in Fonseca key, the other one was Ophyra leucostoma, with description : "Lower squama strongly darkened, with dark brown border and fringe. Presutural dorsocentrals well, acrostichals moderately, developed. Females : Frontal triangle not reaching lunule. 5,5-7,25 mm. This one is now named Hydrotaea ignava (Harris 1780) ! As I see from the comments here we could read from pictures about the front ... Here are some pictures with different angles of this zone of the head... Can I hope some comments about and perhaps an ID ?          Do I have to add that all those species are now recognised and present in Belgium : Hydrotaea aenescens, Hydrotaea capensis and Hydrotaea ignava... Thanks for reading, Have a good day, Didier. Edited by Tetrao on 25-05-2024 08:06 |
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| Tetrao |
Posted on 24-05-2024 14:15
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Member Location: Belgium, Wanze Posts: 322 Joined: 14.06.18 |
https://www.googl...W3aYbUdnEx Page 230 Edited by Tetrao on 24-05-2024 14:16 |
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