Sixteen species of the subfamily Amphigerontiinae (Psocoptera: Psocidae) known from Sumatra are noted, and nine are here described as new. New taxa represent the genera Neoblaste (N. cochleata, N. torquata, N. katambiense, N. piscata), Anomaloblaste (A. sudaryantoi), Javablaste (J. junithai, J. ramonai, J. darmayasai) and Blaste (B. jambiense). The male of Anomaloblaste is described for the first time. The genus Kaindipsocus is recorded for the first time from Indonesia, represented by K. splendidus Lienhard, described from Vietnam.