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Hello,


I caught this fly on May 13, 2018 foraging dandelions (Taraxacum sp.) in on the coast of Poullan-sur-Mer in South West of French Brittany (lat : 48.09652125222015, long : -4.4401704448848704) on sunny day.

Habitus

Terminalia dorsal view

Terminalia side view


I caugth two others samples with the same terminalia. It could be Heterostylodes macrura ?

thank you in advance.

P-Y

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Could be.....can you make also a photo of the V sternite?
Or a drawing?
Tomorrow I am not present, so my answer probable will be coming weekend.

Johanna

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Thank you Johanna,

I tried to take pictures of sternite V under binoccular lens.

Ventral view


Postero-lateral view


Antero-ventral view where we see a tuft of short setae hardly visible on the ventral view


An other sample caugth in same conditions (with same terminalia) :


P-Y

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Nice work!
It could be indeed H. macrura, but I like to rule out H. caledonica....or not.
I contacted Ackland about it, so I have to wait for his response....

Johanna

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Thank you very much for your help Johanna;

P-Y

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Coming back to your H. macrura.
Also Michael thinks this could be indeed H. macrura (Schnabl in Schnabl & Dziedzicki, 1911) , but it would be nice if you could send me one (or two) specimen, so I can look at the shape of the gonites and phallus ….and other characters to be 100% sure!

Nice find!!

Johanna
(you can send me a pm, my emailadress is present under my profile)

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OUhouhou !!! :)

Thank you very much Johanna !
I send you an e-mail ;)

P-Y

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Hello everybodies,

After several weeks of regular exchanges between Johanna and me and the shipment of some specimen in the Netherlands Heterostylodes macrura (Schnabl in Schnabl & Dziedzicki, 1911) is confirmed.
This is the beautiful pictures of male genitalia made by Johanna.

Johanna Van Erkelens : France : Poullan-sur-Mer : 29100 : 13/05/2018
Altitude : NR - Taille : 7-8mm
Réf. : 222907

Thank you again Johanna !

P-Y