Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinidae question
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| varganimrod |
Posted on 02-05-2023 18:36
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Member Location: Posts: 776 Joined: 11.10.22 |
Hello! I caught this fly at night, in Hungary. I keyed it out, and I got Istocheta cinerea/subcinerea. As I read, distinction of these two species is only possible in females. But, how can I identify genders in this genus? I did some pictures about sternites, because this is the only way to distinguish these two species, but I don’t know if this is a male or a female. Could you help me please?
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| varganimrod |
Posted on 02-05-2023 18:36
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:36
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:37
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:37
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:37
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Member Location: Posts: 776 Joined: 11.10.22 |
6. About sternites
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| varganimrod |
Posted on 02-05-2023 18:37
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:38
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:38
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:39
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Member Location: Posts: 776 Joined: 11.10.22 |
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| varganimrod |
Posted on 02-05-2023 18:39
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Member Location: Posts: 776 Joined: 11.10.22 |
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varganimrod attached the following image:  [85.07Kb] |
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| John Carr |
Posted on 02-05-2023 19:20
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 Member Location: Massachusetts, USA Posts: 9834 Joined: 22.10.10 |
I think you have a female Istocheta cinerea. According to Wood's review of New World Blondeliini, male Istocheta lack proclinate orbitals. It is not clear whether his diagnosis is based on all world species or only on the single species found in North America. |
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| varganimrod |
Posted on 02-05-2023 19:52
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Member Location: Posts: 776 Joined: 11.10.22 |
Thank you very much!
Edited by varganimrod on 02-05-2023 19:53 |
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| Zeegers |
Posted on 03-05-2023 06:52
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Member Location: Soest, NL Posts: 18516 Joined: 21.07.04 |
In any case, it is a female indeed. Nice work. Most Istochaeta are active at night, so that figures Theo |
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| varganimrod |
Posted on 03-05-2023 09:03
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Member Location: Posts: 776 Joined: 11.10.22 |
Thank you! |
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but don't see the image in the post.
