Sanders, J.G. 1904a The Coccidae of Ohio.. Proceedings of the Ohio Academy of Science 4: 25-92.
Notes: Keys, descriptions, and figures for 61 Ohio scale insects in 20 genera (Coccinae omitted). Also issued as Ohio State Univer. Bul (ser. 8) No. 17 (Contrib. Dept. Zool. and Ent. No. 18), p. 25-92.