Kawai, S., & Takagi, K. 1971a Descriptions of three economically important species of root-feeding mealybugs in Japan (Homoptera: Pseudococcidae).. Applied Entomology and Zoology. Tokyo 6: 175-182.

Notes: Rhizoecus theae and R. hibisci new sp.; redescription of R. kondonis; hosts and distribution.