Diptera.info

Posted by Roger Thomason on 14-07-2023 15:17

Found above the shoreline at Alameda, San Francisco. Trawling through BugGuide it "looks like" Deopalpus hirsutus. Correct or something else?

https://bugguide....ew/1037718

Regards

Roger.

Edited by Roger Thomason on 14-07-2023 15:32

Posted by Zeegers on 14-07-2023 17:28

Well, both have the “Peleteria”- bristle, so might be a good start.
I guess Jihn can tell more.

Theo

Posted by John Carr on 14-07-2023 20:02

I think Peleteria (Sphyrimyia). The subgenus name is used in the checklists published by the CNC, not in other literature. In general species of Peleteria have 4 pairs of postsutural dorsocentrals while Deopalpus have 3 pairs. There is also Copecrypta with only a single strong parafacial bristle.

Posted by Roger Thomason on 27-08-2023 12:57

Thank you Theo and John!!
BugGuide lists only 2 species under Peleteria (Sphyrimyia). Peleteria haemorrhoa and Peleteria anaxias! Of those I think this "should be" Peleteria anaxias as Peleteria haemorrhoa has a black triangle on the base of the fourth abdominal segment. My fly is missing that, as per the attached photo.

https://bugguide....ew/1485814

https://bugguide....193/bgpage

Regards

Roger

Edited by Roger Thomason on 27-08-2023 13:01