Couplets: 1  2  3  4  5  6  7  8  9  10  

Key to Adults of Holarctic Blephariceridae: Couplet 8(7)

Eyes entire or broadly separated in both sexes; mid coxa of both sexes without setose median outgrowths...Liponeura Loew	Eyes divided, separated (male; note: in males, the division between the upper and lower eye is sometimes indistinct, but evident from a gradient in facet size) or contiguous (most females); mid coxa of female with setose median outgrowth...Blepharicera Macquart