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Diptera.info » Identification queries » Diptera (adults)
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Parydra quadrifasciatus?
sbushes
Parydra I imagine(?) following comparison with gallery images.
If so, appears to key to P.quadrifasciatus in Drake 2006.

- Yellow dusting on face.
- No prominent tubercle on scutellum.
- Appendix to wing vein.
- Wing markings indistinct
- Fan on front femora seems pale and about same length as narrowest width of femur itself.
- Silver markings at base of mid-tibia

Definitely on the larger side - perhaps 4mm or so?
About twice the size of the other small Ephydrids I photographed there.
e.g. https://www.inaturalist.org/observations/91509048

Shrewsbury river bank, UK - 16/08/21
Edited by sbushes on 02-12-2021 20:02
 
sbushes
wings with appendix to R2+3
and subtle darkening of cross-veins
Edited by sbushes on 17-08-2021 10:51
 
sbushes
front femur with pale hair
and mid tibia
Edited by sbushes on 17-08-2021 10:13
 
sbushes
Another angle of mid-tibia dusting
 
sbushes
no prominent tubercle on scutellum I believe, ruling out P.coarctata

this image from one of the other flies, but the same business
Edited by sbushes on 17-08-2021 10:46
 
sbushes
Full set:
https://www.inatu...s/91473051
Other members of the same business:
https://www.inatu...s/91509046
https://www.inatu...s/91509049
Edited by sbushes on 17-08-2021 10:41
 
sbushes
anyone able to confirm this one?
 
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18 May 2025 07:34
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Tony, I HAD a blank in the file name. Sorry!

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