Rivellia syngenesiae

Rivellia syngenesiae

Observation - Rivellia syngenesiae. Description: Tiny black flies, just 2 or 3mm in length, in large numbers across mixed vegetation. Their wings are patterned almost like picture flies.

Tiny black flies, just 2 or 3mm in length, in large numbers across mixed vegetation. Their wings are patterned almost like picture flies.