Posted by DedeLab on 24-07-2026 10:17
#1
Hello,
This Lauxaniid with shaded cross-veins was photographed on the Roussillon plain (South of France) on July 14th. Its measured length is 3.9 mm.
Mike Hackston's key leads to the genus *Homoneura*:
- Ocellar bristles originate from the ocellar triangle.
- 0+3 dc and 0+1 ac + 4 rows of setulae.
- Costal spinules reach vein R4+5.
- Mid-tibia with a distinct posteroventral spur, in addition to the usual ventral spur —> *Homoneura*.
The costal spinules do not reach vein M1+2. According to this topic (
https://diptera.i...d_id=95349), *Homoneura interstincta* is the only European species fitting this description.
What bothers me is that the key lists this species as measuring 2.3 to 2.8 mm.
What do you think?
Edited by DedeLab on 24-07-2026 10:29