Key to Adult Males of Eastern Nearctic Blephariceridae: Couplet 10(9)
Apical margin of cercal lobe with acutely pointed lobe medially; apex of dorsal paramere deeply incised on either side of pronounced medial dorsal carina...Bl. tuberosa Courtney
Apical margin of cercal lobe with broadly rounded inner corner; apex of dorsal paramere entire on either side of weak medial dorsal carina...Bl. separata Alexander