Diptera.info :: Identification queries :: Diptera (adults)
 Eriothrix to ID
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| Rui Andrade |
Posted on 28-07-2018 09:33
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 Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Hi, I'm not sure about the identification of this tachinid. Wing cell r4+5 seems to be open. location: Bragança, Portugal date: 25/07/2018 Rui Andrade attached the following image:  [197.88Kb] |
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| Rui Andrade |
Posted on 28-07-2018 09:33
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Arista
Rui Andrade attached the following image:  [122.4Kb] |
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| Rui Andrade |
Posted on 28-07-2018 09:34
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Occiput
Rui Andrade attached the following image:  [189.08Kb] |
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| Rui Andrade |
Posted on 28-07-2018 09:34
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Humeral callus
Rui Andrade attached the following image:  [171.7Kb] |
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| Rui Andrade |
Posted on 28-07-2018 09:35
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Wing
Rui Andrade attached the following image:  [170.54Kb] |
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| Rui Andrade |
Posted on 28-07-2018 09:35
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Mid-dorsal depression of syntergite 1+2
Rui Andrade attached the following image:  [185.33Kb] |
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| Zeegers |
Posted on 30-07-2018 20:24
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Member Location: Soest, NL Posts: 19036 Joined: 21.07.04 |
Yes, well spotted. It is a female, which is pretty awkward. It keys out to E. micronyx, which is an extremely rare species. Did you collect it ? From what altitiude is the record ? Thanks Theo |
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| Rui Andrade |
Posted on 30-07-2018 22:48
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thanks, Theo. The specimen was collected and the altitude is 1054 m. |
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| Zeegers |
Posted on 31-07-2018 15:39
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Member Location: Soest, NL Posts: 19036 Joined: 21.07.04 |
Nice. If you want to be sure, you are welcome to send the specimen over. You know my address (or send me a PM) Thanks Theo |
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| Rui Andrade |
Posted on 31-07-2018 23:16
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thank you, Theo. I'll keep the specimen for you. |
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| Zeegers |
Posted on 20-08-2018 09:38
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Member Location: Soest, NL Posts: 19036 Joined: 21.07.04 |
So, this proved to be interesting. As already observed, there are too many black hairs on occiput for apenninus. That said, there are too few in comparison with my only micronyx in collection. Moreover, the greyish dusting on tergites is too prominent for micronyx. On the humeri, on one side there are 5 bristles, on the other side 4. This explains the confusion: clearly this must be an aberration. We are dealing wit a female of Eriothrix argyreatus with only 4 humeral bristles on one side . So: Eriothrix argyreatus . Thanks for sending the specimen, in these aberrant cases one really needs to have the specimen at hand to see what is going on ! Theo |
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| Rui Andrade |
Posted on 20-08-2018 13:01
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thank you Theo for the identification and explanation! I'm really happy to have found an interesting Eriothrix.  |
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