New genus and species of the Psyllipsocidae (Psocodea: Trogiomorpha) from mid-Cretaceous Burmese amber

A new genus and species, Concavapsocus parallelus gen. et sp. nov., is assigned to the Psyllipsocidae (Trogiomorpha). Claws with preapical tooth and forewing with nodulus may not be suitable for diagnostic characters of the Psyllipsocidae. Wing polymorphism increase the difficulty of taxonomic position of psocids based on barely visible wing venation, especially in the suborder Trogiomorpha. Globopsocus aquilonius Azar and Engel may belong to the Psyllipsocidae and be closely related with the new species.