Helopicus subvarian, Taxa Only, Exact Match: 2 Treatments

Helopicus subvarians			Earle, Jane I., 2009, New State Stonefly (Plecoptera) Records For Pennsylvania, With Additional Records And Information On Rare Species, Illiesia 5 (16), pp. 169-181 : 178-179	178-179
Helopicus subvarians			Newell, Robert L. & Baumann, Richard W., 2012, Stonefly Sex Gone Awry: An Attempted Mating By A Perlinodes Aureus (Smith) Male With A Pteronarcys Californica Newport Male, Illiesia 8 (16), pp. 152-157 : 156	156