Malostenopsocus Li
Genus Malostenopsocus Li, 1992. Type species: Malostenopsocus yunnanicus Li, 1992: 245, original designation.
Diagnosis. Wings transparent, without distinct markings ( M. plurifasciatus with markings on wings), veins darker than wing margin. Forewing costal vein with setae from base of anterior margin to pterostigma, all veins with single-row setae at least, but R, Rs+M, CuA+M, and CuA with two-row setae, and basal membranous part of forewing with setae. Abdomen with segments 8–9 indistinctly sclerotized. Female spermathecal sac with a lateral pouch connecting to spermathecal duct.