---

Hello,

on the fresh leaves of daylilies (Hemerocallis) there are often several of these black flies when the sun is shining. Strangely enough, always on this plant. The size is less than one centimetre. Jürgen Peters has already identified it as Delia spec. Can anything be said about the species here?
Findings: Germany, Saarland, Bexbach, garden on daylily (Hemerocallis), 250 m, 19.04.2023

Greetings, Volker

Click to enlarge the image