Thread subject: Diptera.info :: Dolichopus ungulatus (Dolichopodidae)? -> yes

Posted by smol on 11-06-2025 07:58
#1

Netherlands, 1 Jun 2025

Observation: https://waarneming.nl/observation/353984500/

waarneming.nl/media/photo/120157325.jpg
waarneming.nl/media/photo/121464024.jpg
waarneming.nl/media/photo/121464025.jpg

Very unsure. I am not seeing true dorsal setae on the first tarsomere of the hind tibia, but the first tarsal segment is not shorter as the second and there are no true apical setae on the hind femur (only subapical anterior?). Do not believe it can be anything else, so they might be broken or are the small hairs enough?

Edited by smol on 13-06-2025 12:08

Posted by Igor Grichanov on 13-06-2025 09:48
#2

It is Dolichopus ungulatus

Posted by smol on 13-06-2025 12:08
#3

Igor Grichanov wrote:
It is Dolichopus ungulatus


Thank you very much it!
I have been using the Grichanov (2006)(https://diptera.i...urope.pdfl) key, but I am not understanding one couplet:


31. Hind basitarsus with distinct bristle above.......................................Dolichopus
– Hind basitarsus without bristles above..........................................................32


Is this in reference to think short bristles from top to bottom of the basitarsus, or does this also variate between Dolichopus? I suppose my frame of reference is a bit limited to interpret this characteristic, but I can see the obvious less thick bristles in my other post (https://diptera.i..._id=115616).

Hope I can recognize this to try to ID these more certain. Appreciate the help!