José P. Tan. 1924. The rice root aphis (Dryopela hirsutata A. C. Baker). Philippine Agriculturalist 13 (7): 277-288.

Keywords: dryland rice Oryza sativa, Philippines, Tetraneura nigriabdominalis (=Dryopela hirsutata), life history, bionomics, parthenogenesis, fecundity, root pest, natural enemies, association with ants, plant hosts, injury to the rice plant, host plant resistance, nature and effect of infestation, survival, alate forms