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Diptera.info :: Identification queries :: Diptera (adults)
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Psilidae > Chamaepsila strigata
Raimo
#1 Print Post
Posted on 07-07-2022 19:44
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Location: Karlstad, Sweden
Posts: 1317
Joined: 10.11.13

SW Sweden July 3.
Raimo attached the following image:


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Edited by Raimo on 23-09-2022 18:50
 
Raimo
#2 Print Post
Posted on 07-07-2022 19:45
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Location: Karlstad, Sweden
Posts: 1317
Joined: 10.11.13

.
Raimo attached the following image:


[207.92Kb]
 
RamiP
#3 Print Post
Posted on 07-07-2022 20:24
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Chamaepsila humeralis/pectoralis, I think.

Regards another RaimoWink
 
www.hyonteiset.com
Raimo
#4 Print Post
Posted on 07-07-2022 21:08
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Location: Karlstad, Sweden
Posts: 1317
Joined: 10.11.13

Thanks Raimo. Rami was what I was called as a toddler.
 
Jocelyn Claude
#5 Print Post
Posted on 21-09-2022 17:18
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Hi, I don't think it is Cha. humeralis or pectoralis: The mesopleuron is not black, which directly excludes humeralis; In case of yellow-dominant mesopleuron (as here), there is no black triangle on the katepisternum, so that also excludes pectoralis, which must have one. On the other hand this individual has the upper margin of mesopleuron black, forming a black line beginning narrowly on the upper margin, but widening behind until it meets the dark postnotum below the scutellum. Pleurae largely yellow. Postpronotal lobe at least partly yellow. We are thus dealing here with a Chamaepsila strigata (Collin, 1959). You didn't keep the specimen?
JOcelyn
 
Jan Willem
#6 Print Post
Posted on 22-09-2022 13:57
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Location: Waalwijk, The Netherlands
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Hello Jocelyn,

Which key are you using? My key is missing Chamaepsila strigata and doesn't have some of the details you mention for C. pectoralis.
Jan Willem van Zuijlen
 
Jocelyn Claude
#7 Print Post
Posted on 22-09-2022 15:09
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Hello Jan, I have used several keys but you can simply use Paul Beuk's key: http://www.online-keys.net/infusions/keys/keys_print.php?key_no=34#c23
I have been working in depth for a few years on the Psilidae, including the Chamaepsila, the most problematic genus. I base my work mainly on the examination of genitalia, which allows me to make a good identification and to select the right external criteria to identify the species. An article on the Western European Chamaepsila is forthcoming, including descriptions of 3 new species and many illustrations of the terminalia. It's good to see your specimens in natura, it's a change from mine alcohol!
All the best !
Jocelyn
 
Jan Willem
#8 Print Post
Posted on 22-09-2022 21:03
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Location: Waalwijk, The Netherlands
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Thank you for your feedback Jocelyn! Most of my specimens are also in alcohol. Smile
Looking forward to the forthcoming publication!
Edited by Jan Willem on 27-09-2022 15:31
Jan Willem van Zuijlen
 
Raimo
#9 Print Post
Posted on 23-09-2022 18:49
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Location: Karlstad, Sweden
Posts: 1317
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Thankyou Jocelyn. This species have not been recorded in Sweden so this is a first. Perhaps not so surprising given this difficult genus. I did not collect it.
Edited by Raimo on 23-09-2022 19:10
 
Jocelyn Claude
#10 Print Post
Posted on 27-09-2022 13:37
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Its range (https://micropezids.myspecies.info/taxonomy/term/122) is still unknown. We have it in France, so it is not surprising that it is in Sweden! Nice, you have to publish now Wink
 
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