Pine sawflies (Hymenoptera: Diprionidae: Diprion) are eruptive pests of pine and larch native to Eurasia, sometimes denuding whole forests. Despite the well-established economic significance of pine sawflies, and their invasive potential, there are no tools whatsoever for comprehensive identification of species within the genus Diprion: what few keys exist are regional, and some have not been translated into English.

At the USDA-ARS SEL, supported by Farm Bill funding, I worked to mend this situation by creating matrix Lucid keys for identification of both sexes of Diprion. These are now available as an IDTool ("Diprion ID") hosted by the Identification Technology Program in collaboration with APHIS-PPQ-S&T-PITL, along with factsheets compiling all available distributional and bionomic data for each of the 12 described Diprion spp.