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Diptera.info :: Identification queries :: Diptera (adults)
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Parydra quadrifasciatus?
sbushes
#1 Print Post
Posted on 17-08-2021 11:12
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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
sbushes attached the following image:


[139.56Kb]
Edited by sbushes on 02-12-2021 21:02
 
sbushes
#2 Print Post
Posted on 17-08-2021 11:12
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wings with appendix to R2+3
and subtle darkening of cross-veins
sbushes attached the following image:


[222.84Kb]
Edited by sbushes on 17-08-2021 11:51
 
sbushes
#3 Print Post
Posted on 17-08-2021 11:13
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front femur with pale hair
and mid tibia
sbushes attached the following image:


[214.86Kb]
Edited by sbushes on 17-08-2021 11:13
 
sbushes
#4 Print Post
Posted on 17-08-2021 11:16
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Another angle of mid-tibia dusting
sbushes attached the following image:


[179.53Kb]
 
sbushes
#5 Print Post
Posted on 17-08-2021 11:23
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no prominent tubercle on scutellum I believe, ruling out P.coarctata

this image from one of the other flies, but the same business
sbushes attached the following image:


[213.86Kb]
Edited by sbushes on 17-08-2021 11:46
 
sbushes
#6 Print Post
Posted on 17-08-2021 11:40
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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 11:41
 
sbushes
#7 Print Post
Posted on 02-12-2021 21:03
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anyone able to confirm this one?
 
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Date and time
20 January 2022 06:30
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