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Diptera.info » Identification queries » Diptera (adults)
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What are they and what are they doing?
anto
Barcelona 30-6-19.Spain.
 
eklans
Hi, could be Gaurax sp. (Chloropidae) and they are eating - some already being well-fed.

Eric
Edited by eklans on 30-06-2019 20:22
 
Jan Maca
To me it looks more like Thaumatomyia. Perhaps they are sucking honeydew. Larvae of this genus are associated with aphids.
 
Tony Irwin
I would say Gaurax, which has been regularly recorded feeding on bird droppings
Tony
----------
Tony Irwin
 
Paul Beuk
Thaumatomyia should have a flat scutellum but the shine on several specemens shows the scutellum is convex. I go with Gaurax fascipes.
Paul

- - - -

Paul Beuk on https://diptera.info
 
diptera.info
von Tschirnhaus
Gaurax Loew, 1863 spec. (Chloropidae). This is a highly interesting photo, as Gaurax species are hitherto not known to aggregate on a feeding source. In this case it may be a bird dropping containing electrolytes which are luring especially tropical Chloropidae (and other flies) in electrolyte-poor habitats and rainforests. Gaurax species are difficult to identify because of their wide colour variability. The male genitalia are specific. Several European species are still undescribed, mostly caught on or reared from dead wood or mushrooms and preferring shady biotopes. If any male could be obtained from the same locality, the writer could identify this species possibly being a first record for Spain.
Edited by von Tschirnhaus on 09-04-2020 16:43
 
http://www.uni-bielefeld.de/biologie/sammlung/inde
anto
Sorry for not answering before. I will try to return to the place and look for these mosquitoes again. I will also look in my file from that day and try to put a more enlarged photo, where you can see more details.
Regards.
Edited by anto on 30-07-2020 09:29
 
anto
I attach a couple of images. If you want the file in a large size, you only have to ask me and I will gladly send it to you by email.
 
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17.08.23 15:23
Aneomochtherus

17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

17.08.23 11:37
pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

16.08.23 08:37
Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!

23.02.23 21:29
Has anyone used the Leica DM500, any comments.

27.12.22 21:10
Thanks, Jan Willem! Much appreciated. Grin

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Thanks Paul for your work on keeping this forum available! Just made a donation via PayPal.

09.10.22 17:07
Yes, dipterologists from far abroad, please buy your copy at veldshop. Stamps will be expensive, but he, the book is unreasonably cheap Smile

07.10.22 11:55
Can any1 help out with a pdf copy of 1941 Hammer. Vidensk. Meddel. Dansk Naturhist. Foren. 105; thank you

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