Thread subject: Diptera.info :: Anthomyiidae for ID, N Spain

Posted by Michael Ackland on 19-01-2014 22:50
#6

I think it is probably Fucellia maritima, as the hairs or small setulae between presutural acrostichal setae are distinct. The last photo is a male, the others females. Unfortunately I can't see the hind femoral tubercle on the male, as it is perhaps the most distinctive character to separate the species. The females are quite difficult regarding the width of the lower gena, as the range of the ratio compared to eye head is overlapping, but on a sample most specimens fit one or the other. Female F. maritima= gena 0.6–0.7 times the height of an eye, female tergina =gena, 0.5–0.65 times the height of an eye