Thread subject: Diptera.info :: Paracraspedothrix? => P.montivaga (likely)

Posted by sbushes on 05-12-2021 23:54
#1

Older unidentified observation
29/04/20
Shrewsbury, UK

Limited detail in photos...but possible for it go anywhere?
Suggestions on iNaturalist so far = Actia lamia or Paracraspedothrix.

Edited by sbushes on 06-12-2021 23:03

Posted by sbushes on 05-12-2021 23:55
#2

...

Posted by sbushes on 05-12-2021 23:56
#3

Bend in M-vein seems extremely faint, but visible in this otherwise rather useless image :)

Posted by Zeegers on 06-12-2021 10:39
#4

If in grassland Paracraspedothrix.
If in wood near mushrooms on wood: Phytomyptera.

Theo

Posted by sbushes on 06-12-2021 12:12
#5

Ok, thanks Theo.
This one was in town centre, photographed on stone.
I think on architecture - a church/nearby wall between park and graveyard.

Posted by Zeegers on 06-12-2021 12:20
#6

Phytomyptera needs Ganoderma mushrooms or similar.
So Paracraspedothrix seems more likely …

Posted by sbushes on 06-12-2021 12:24
#7

In terms of existing records, there would seem to be three options:

Paracraspedothrix montivaga
(only known member of genus in UK - previously recorded nearby in town)

Phytomyptera cingulata
(previously recorded nearby in town)

Phytomyptera nigrina
(previously recorded in county)

The other Phytomyptera listed have little to no actual records in country.

Posted by Zeegers on 06-12-2021 15:08
#8

I don't have to mention the pictures are of poor quality. In Phytomyptera, the apical cross-vein (when present) is distinctly concave in apical half. I don't see that here.
So I am pretty convinced this is Paracraspedothrix montivaga.

N.B. Craspedothrix is a junior synonym of Phytomyptera !


Theo

Posted by sbushes on 06-12-2021 18:09
#9

Yes, terrible quality.
Early days in terms of my diptera recording.
Better equipment now, so hopefully these days are largely passed.

But thanks for the detailed input Theo, all very much appreciated.

Sam

Posted by Zeegers on 06-12-2021 18:54
#10

Well, it is a small fly.

Theo