Thread subject: Diptera.info :: Carcelia iliaca ? -> Phryxe semicaudata

Posted by evdb on 09-06-2022 09:13
#1

Hi,

Center of France (Loiret) on 8th june 2022, in a nest of Thaumatopoea processionea. Single shot.
Somebody to confirm Carcelia iliaca ?
Thanks for help.

www.galerie-insecte.org/galerie/image/dos304/big/_AAB4982.jpg

Edited by evdb on 22-11-2022 16:44

Posted by eklans on 09-06-2022 10:03
#2

Hello Eugene, it's not a Carcelia: Scutellum & tibiae are black.

Posted by Zeegers on 09-06-2022 17:05
#3

Generally very valid arguments, but iliaca can be very dark.
Given habitat and Thaumetopoea, this still is a likely C. iliaca to me.

Theo

Posted by eklans on 09-06-2022 17:42
#4

Hi Theo, habitat and Thaumetopoea doesn't necessarily mean C. iliaca.
Pales, Winthemia, Phorocera, Zenillia are out, but Exorista and Phryxe parasitize Thaumetopoea, too.
And this one looks so completely differant to my iliacas:

Posted by evdb on 09-06-2022 23:13
#5

Correct, not C. iliaca because there are discal bristles on tergits but I don't see where to go.

Posted by eklans on 10-06-2022 10:08
#6

Hello Eugéne, I've checked the flies, that the T&H key associates with the OPM and could exclude these:
Carcelia iliaca
Pales processionae
Phorocera grandis
Winthemia venusta
Zenillia libatrix
Remain:
Exorista segregata
Phryxe semicaudata (with my limited knowledge: possible)

Posted by evdb on 10-06-2022 16:15
#7

Thanks for the job !
Phryxe should match, there are 4 dc post.
It may be P. caudata or P. semicaudata and caudata seems to be mediterranean.
Greetings.

Posted by eklans on 12-06-2022 18:11
#8

Hello Eugéne, besides the southern occurence of caudata we can see one feature to separate caudata from semicaudata on your photo: the pruinosity of the tergites:
P. caudata should have black posterior margins
P. semicaudata is entirely covered.
Your fly might be Phryxe semicaudata.

Posted by evdb on 13-06-2022 00:00
#9

Thanks for confirmation