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 Mycetophilidae : Pseudexechia ?
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| Bruno48 |
Posted on 15-04-2021 20:09
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Member Location: Posts: 41 Joined: 04.11.20 |
I found it in a cave entrance. It seems to me to belong to the genus Pseudexechia. Is that the case ? Thank you for the help.  Bruno RIGHETTI : France : Les Bondons : 48400 : 06/12/2020 Altitude : 1000 m - Taille : 4 mm (LAA) Réf. : 279487  Bruno RIGHETTI : France : Les Bondons : 48400 : 06/12/2020 Altitude : 1000 m - Taille : 4 mm (LAA) Réf. : 279488  Bruno RIGHETTI : France : Les Bondons : 48400 : 06/12/2020 Altitude : 1000 m - Taille : 4 mm (LAA) Réf. : 279486 |
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| Bruno48 |
Posted on 18-04-2021 16:11
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Member Location: Posts: 41 Joined: 04.11.20 |
Wing venation seems to be typical but is it suficient ? |
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| Paul Beuk |
Posted on 20-04-2021 06:59
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 Super Administrator Location: Posts: 19208 Joined: 11.05.04 |
Exechiopsis s.str. With the specimen it would be possible to give the species name.
Paul - - - - Paul Beuk on https://diptera.info |
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| Bruno48 |
Posted on 20-04-2021 17:15
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Member Location: Posts: 41 Joined: 04.11.20 |
Thank you Paul.if you agree I will send it to you. Best regards |
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| Paul Beuk |
Posted on 21-04-2021 08:18
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Super Administrator Location: Posts: 19208 Joined: 11.05.04 |
It is most welcome. I'll send you the address.
Paul - - - - Paul Beuk on https://diptera.info |
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| Paul Beuk |
Posted on 01-05-2021 14:33
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Super Administrator Location: Posts: 19208 Joined: 11.05.04 |
For the time being it is going to be stored as Exechiopsis (Exechiopsis) nr. coremura. After first examination I ended up with two possible species but both of the scarce enough not to have been illustrated recently. In fact, the only illustrations of the genitalia were the ones in the original decsriptions (1928 and 1955, respectively) and not up to present day standards. After that I had a brief email exchange with Peter Chandler and he send me a reference specimen for one of the species, E. coremura, from Spain. This specimen clearly fits the illustration provided by Edwards in 1928 (left). Your specimen closely resembles that species in general structure but there are some distinct differences. The inner median lobe of the gonostylus is much narrower than that in the coremura specimen, the anterior setae on the ventral lobe of the gonostylus are somewhat thicker and more densly packerd and there are some differences on the complex of tergite IX and the cerci. A possible alternative could be Exechiopsis (Exechiopsis) oltenica but the illustration of the genitalia of that species (right) only show the ventral aspect and not the dorsal aspect (which should show the inner median lobe). Until I have seen a reference specimen for that species I cannot rule that one out. Edited by Paul Beuk on 01-05-2021 14:38 Paul - - - - Paul Beuk on https://diptera.info |
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| Bruno48 |
Posted on 02-05-2021 20:42
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Member Location: Posts: 41 Joined: 04.11.20 |
Thank you very much for this precise and detailed information Bruno |
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but don't see the image in the post.
