Marlatt, C.L. 1902a The San Jose scale: its native home and natural enemy.. United States Department of Agriculture Yearbook 1902: 155-174.

Notes: Topics covered include the history of the San Jose scale in America, the status of the scale in Japan and China, introduction and characteristics of Chilocorus similus and C. bivulnerus, potential agents of control of this scale as well as Aspidiotus ancylus and Diaspis pentagona.