Lepidopsocidae are an insect family of bark lice belonging to the suborder Trogiomorpha.

Phylogenetic DNA analysis of relationships between families in Trogiomorpha propose that Lepidopsocidae is monophyletic, meaning that the taxa within all share a common ancestor.

[1] This is supported morphologically by the presence of scales and setae covering the body and forewings of Lepodopsocids.

Sister families of Lepidoposcidae include Trogiidae and Psoquillidae.

Lepidopsocidae was described by Gunther Enderlein in The Scaly Winged Copeognatha (Monograph of the Amphientomidae, Lepidopsocidae, and Lepidillidae in relation to their Morphology and Taxonomy), published in 1906.