Diptera.info :: Identification queries :: Diptera (adults)
 Hybomitra solstitialis ? - ind2 - => yes
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| BLecaplain |
Posted on 08-01-2025 21:59
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Member Location: Posts: 91 Joined: 15.07.24 |
Second post (first : https://diptera.i...ost_473967 Found in a alkalin marsh (by Malaise trap - 04/07/2024). - notopleural lobes yellow/orange - first and second antennal segment orange - basal callus brown - orange on tergite 1-3 with an extension on tergite 4 - black hairs on tergite 2-3 - subgenital plate with basal notch With light notopleural lobes, bimaculata is exclude, distinguenda doesn't have black hairs on tergite 2-3 (and a different subgenital plate) and muehlfeldi have the two first antennal segment grey and not orange. So for me : solstitialis too BLecaplain attached the following image:  [159.47Kb] Edited by BLecaplain on 26-01-2025 10:32 |
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| BLecaplain |
Posted on 08-01-2025 22:00
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Member Location: Posts: 91 Joined: 15.07.24 |
abdomen
BLecaplain attached the following image:  [301.16Kb] |
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| BLecaplain |
Posted on 08-01-2025 22:00
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Member Location: Posts: 91 Joined: 15.07.24 |
head
BLecaplain attached the following image:  [111.75Kb] |
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| BLecaplain |
Posted on 08-01-2025 22:01
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Member Location: Posts: 91 Joined: 15.07.24 |
1st 2nd antennal segment orange
BLecaplain attached the following image:  [139.21Kb] |
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| BLecaplain |
Posted on 08-01-2025 22:01
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Member Location: Posts: 91 Joined: 15.07.24 |
subgenital plate
BLecaplain attached the following image:  [78.88Kb] |
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| BLecaplain |
Posted on 08-01-2025 22:01
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Member Location: Posts: 91 Joined: 15.07.24 |
underside
BLecaplain attached the following image:  [222.69Kb] |
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| Zeegers |
Posted on 10-01-2025 20:20
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Member Location: Soest, NL Posts: 19107 Joined: 21.07.04 |
Weird. Except for the first antennal segment, this is distinguenda all over. Are youx very sure you got the right foto for the antenna ? Theo |
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| BLecaplain |
Posted on 10-01-2025 22:32
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Member Location: Posts: 91 Joined: 15.07.24 |
No doubt this is the same specimen in all photos. We have too more orange on tergite for solstitialis ? Subgenital plate doesn't match for distinguenda no ? Edited by BLecaplain on 10-01-2025 22:33 |
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| Zeegers |
Posted on 11-01-2025 11:08
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Member Location: Soest, NL Posts: 19107 Joined: 21.07.04 |
Subgenital plate is shown slightly asymmetrical, so difficult to judge, but I guess you are right. Should be solstitialis. They tend to be more yellow to the south (= ciureai Seguy) Theo |
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| BLecaplain |
Posted on 11-01-2025 11:24
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Member Location: Posts: 91 Joined: 15.07.24 |
The convex base of the subgenital plate is not a good criteria for solstitialis ? The cerci are not enough visible to compare with distinguenda. |
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| BLecaplain |
Posted on 13-01-2025 10:28
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Member Location: Posts: 91 Joined: 15.07.24 |
I cleaned the genitalia to extract the cerci and furca
BLecaplain attached the following image:  [53.63Kb] Edited by BLecaplain on 13-01-2025 10:29 |
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| BLecaplain |
Posted on 13-01-2025 10:30
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Member Location: Posts: 91 Joined: 15.07.24 |
Cercus is less rounded than in distinguenda. Base of furca, if this feature could be use (and not variable), different from distinguenda's one. BLecaplain attached the following image:  [134.75Kb] |
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| BLecaplain |
Posted on 22-01-2025 12:22
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Member Location: Posts: 91 Joined: 15.07.24 |
Theo ? For a last confirmation ? |
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| Zeegers |
Posted on 24-01-2025 21:57
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Member Location: Soest, NL Posts: 19107 Joined: 21.07.04 |
Yepd, i think you are totally right. Well illustration why we should check genitalia !! Well done Theo |
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| BLecaplain |
Posted on 25-01-2025 08:21
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Member Location: Posts: 91 Joined: 15.07.24 |
Thanks Theo ! |
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