Pityotrichus hesperius (female). (by J Buffam, Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada,). holotype Pityotrichus hesperius Bright; CNCType11445#. Canadian National Collection of Insects, Arachnids & Nematodes, Agric. Agri-Food Canada. (CNC) Used with permission.