Branched-spines
Guides
Blennocampinae
Blennocampinae is a subfamily of sawflies within the family Tenthredinidae, containing over 100 genera and approximately 600 described species. Members are characterized by larvae that often bear distinctive branched or bifurcate dorsal spines. The subfamily includes species with documented associations with woody host plants, particularly oaks (Quercus) and hickories (Carya), as well as some that have become notable urban pests. Larvae possess six or more pairs of prolegs, distinguishing them from lepidopteran caterpillars.
Periclista marginicollis
Periclista marginicollis is a sawfly species in the family Tenthredinidae, subfamily Blennocampinae. Larvae are recognized by their green coloration and distinctive bifurcate (branched) dorsal spines. The species has a widespread eastern North American distribution and develops on oak and hickory host plants. Adults are rarely encountered compared to larvae, which feed externally on foliage.