Abstract
A new genus Stimulopsocus gen. nov. with one new species Stimulopsocus jiewenae sp. nov. is described from the mid-Cretaceous Burmese amber. This new genus is assigned to the family Cormopsocidae according to the following characters: forewing anterior and posterior margins almost parallel; dark quadrangular pterostigma present; forewing with crossvein r-rs and only one A. Some characters in Stimulopsocus gen nov. differ from the other genera of Cormopsocidae, i.e., a length of Sc appearing as a crossvein-like veinlet at middle of forewing; all tibiae with spine-like setae. Remarkably, the forewing Sc of Stimulopsocus is more similar to Permopsocida than to Psocodea.
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