Couplets: 1  2  3  4  5  6  7  8  9  10  11  

Key to Pupae of Eastern Nearctic Blephariceridae: Couplet 2(1)

Branchial sclerite densely covered with small papillae; cephalic sclerite with pair of ridges extending dorsoventrally for nearly half its height...Bl. diminutiva Hogue	Branchial sclerite without papillae; cephalic sclerite without submedian ridges...3