Thread subject: Diptera.info :: Tachinidae - Belida angelicae, male.

Posted by Morten A Mjelde on 08-11-2023 23:42
#1

I guess this Tacinid will be a challenge. Found in forest area, Southern Norway, 7 July.

Edited by Morten A Mjelde on 20-11-2023 18:51

Posted by Morten A Mjelde on 08-11-2023 23:42
#2

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Posted by Morten A Mjelde on 08-11-2023 23:42
#3

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Posted by Morten A Mjelde on 08-11-2023 23:43
#4


Edited by Morten A Mjelde on 08-11-2023 23:47

Posted by Morten A Mjelde on 08-11-2023 23:48
#5

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Posted by Morten A Mjelde on 08-11-2023 23:48
#6

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Posted by Morten A Mjelde on 08-11-2023 23:48
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Posted by Morten A Mjelde on 08-11-2023 23:51
#8

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Posted by Morten A Mjelde on 08-11-2023 23:52
#9

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Posted by John Carr on 09-11-2023 01:28
#10

A late Phorocera?

Posted by neprisikiski on 09-11-2023 13:15
#11

I think it is not Phorocera, as it has postpronotal setae in a distinct triangle.
Plesae check for the hairs on the vein R4+5, if there are hairs to the midway of the R-M crossvein, than it could be Belida angelicae.

Posted by John Carr on 09-11-2023 16:03
#12

neprisikiski wrote:
I think it is not Phorocera, as it has postpronotal setae in a distinct triangle.
Plesae check for the hairs on the vein R4+5, if there are hairs to the midway of the R-M crossvein, than it could be Belida angelicae.


According to the Central European key Belida has bare eyes and a broader frons (at least 0.71 as wide as an eye). As a member of tribe Blondeliini it should not have a right-angled bend in vein M.

Posted by Morten A Mjelde on 09-11-2023 18:34
#13

Thank you very much John and Erikas!
I think the third antennal segment is too small to be Phorocera obscura...

Morten

Posted by neprisikiski on 10-11-2023 01:24
#14

In the tribe Exoristini postpronotal setae are not arranged in a distinct triangle, therefore I excluded them.

Posted by neprisikiski on 10-11-2023 02:49
#15

You may include just three characters in the interactive key of Cerretti for Exoristinae (1. eye pubescent, 2. postpronotal setae in a triangle and 3. depression on basal syntergite extending on the proximal half) and you will get only three genera: Istocheta, Lecanipa and Ptesiomyia. The first two are Blondeliini with obtuse angle of medial vein, therefore the third one is the most suitable identificaion.

Posted by neprisikiski on 10-11-2023 09:08
#16

Ptesiomyia alacris, to be more precise.

Posted by Morten A Mjelde on 10-11-2023 20:03
#17

Nice! Thanks a lot!

Morten

Posted by Zeegers on 11-11-2023 08:47
#18

but the first supra-alar is short, I’d say that is a no-go.
Habitus is like Belida, costal spine is strong, eye look bare in one pic and hairy in the other, very confusing, apical scutellars are short, …

I still think it is Belida. Vertex is not that broad ….

Theo

Posted by Morten A Mjelde on 11-11-2023 11:47
#19

Thank you, Theo! Smile

Morten

Posted by neprisikiski on 11-11-2023 12:51
#20

I also had doabts about Ptesiomyia, but Morten has ignored my first question about the bristles on the vein R4+5, so could you answer please? Hairs on the eyes seems rather short to be treated as clearly pubescent.