Key to Instar IV Larvae of Eastern Nearctic Blepharicera (Bl. tenuipes species-group)

Couplets: 1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  

Couplet 6(3)

Clypeus w/ pair of prominent, anteriorly projected spines [Chattooga R]...Bl. corniculata Courtney	Clypeal spines absent...7