Psilogramma japonica Eitschberger, 2001 [Invalid]

Synonymized with Psilogramma increta by Kitching and Rougerie et al., 2018, Biodivers. Data J. 6: e22236. Psilogramma japonica was distinguished from Psilogramma mandarina and Psilogramma yilingae [both = Psilogramma increta] by the paler grey ground colour and the shapes of the saccus, lamella antevaginalis and “colliculum” [= antrum]. All of these features are highly variable individually within Psilogramma species and not indicative of species status. Furthermore, DNA barcode data place the holotype of Psilogramma japonica deep within a cluster formed of numerous samples of Psilogramma increta from localities ranging from China to Nepal, Assam, Thailand and Vietnam (BIN AAA2716). Consequently, there is no justification for maintaining Psilogramma japonica as a species.