Posted by
RamiP on 10-01-2022 09:24
#3
Thanks Paul
If it is verbekei, it is new for Finland.
What about P. zernyi, it is pretty common here?
Raimo
#4
I based my ID of
verbekei on the Fauna Ent. Scand. key by Rozkosny (1984), that mentions a more strongly curved posterior crossvein for
zernyi and less strongly curved for
verbekei. The accompanying figures are quite clear. However, looking at the wing figures for the same two species in Rozkosny's Palaearctic key (1987), they seem to be reversed. The kley does nt mention the crossvein, neither is the crossvein mentioned in some of the later keys I have seen. The characters mentioned in those keys are not visible in this picture. So, that leaves us with
Psacadina sp.
Posted by
jonas on 13-01-2022 16:33
#6
Hello
Rozkosny (1984)'s character of wing venation is unreliable if you look at a broad geographicall scope; for identification you should definitely check Kassebeer (2002) :-)
Based on the pictures it is definitely Psacadina, but not possible to identify to species. The general impression of color indicates P. zernyi though. Again, without better pictures not possible to ID a species here, so definitely a guess based on experience.
And last: Psacadina verbekei has not been found in Finland yet, but i am most certain it does occur! Psacadina zernyi is common in Finland (well - I've seen a lot of material in collections from Finland)
Finally, some promo for a recent paper of mine https://www.researchgate.net/publication/348133411_Review_of_Psacadina_Enderlein_Diptera_Sciomyzidae_with_the_description_of_a_new_species_from_Southwest_Europe
It involves a nice map, to see where you might expect P. verbekei
wishes
