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 8(7)

Dorsal secondary sensillae short (shorter than antennal length)...Bl. appalachiae Hogue & Georgian	Dorsal secondary sensillae elongate (longer than antennal length)...Bl. gelida Courtney