Diptera.info

Posted by Roger Thomason on 14-09-2023 22:55

Found in the S.F. Botanic Garden on 20th July 2023. Maybe a male Cochliomyia macellaria OR is it Compsomyiops callipes?

Edited by Roger Thomason on 14-09-2023 23:25

Posted by John Carr on 15-09-2023 11:45

From Whitworth's key:

Setae on posterior margin of hind coxa pale; palp filiform; calypter whitish; bend in M closer to wing margin than dm-cu crossvein. Three species, one widespread (C. macellaria) ... Cochliomyia Townsend (3 species)
Setae on posterior margin of hind coxa long and dark; palp clavate; calypter brown; bend in M closer to dm-cu crossvein or about equal distance between crossvein and wing margin. Found primarily in the southwestern U.S ... Compsomyiops (callipes) (1 species)

Edited by John Carr on 15-09-2023 11:45

Posted by Roger Thomason on 27-09-2023 23:15

Thanks for that John. I did see the key being mentioned on a lot of posts in BugGuide but I still couldn't make up my mind which one it was, as hard to tell now as it was back in 2011 apparently

https://bugguide....iew/591412

Regards

Roger

Edited by Roger Thomason on 27-09-2023 23:16