Thread subject: Diptera.info :: Muscoid fly ID please
Posted by Carnifex on 11-05-2019 23:04
#1
I am still struggling to differentiate Fanniidae from Muscidae. So what is this female? A
Hydrotaea, a
Fannia, s.th. else? Seen in a park in Vienna, mid of May
Posted by John Carr on 11-05-2019 23:30
#2
Not a
Hydrotaea. Fanniidae, almost all Anthomyiidae, and some Muscidae have 2+3 pairs of dorsocentrals. Most Muscidae have 2+4, including
Hydrotaea.
Posted by Carnifex on 11-05-2019 23:33
#3
Thanks John, some helpful hints! I am usually looking for the anal veins, which are more often than not hard to see clearly.
Posted by John Carr on 12-05-2019 00:27
#4
Also, the usually pale parafrontal strips of female
Fannia are broadest in the middle, not parallel sided.