Hempel, A. 1904 [The result of the study of several collections of scales sent to the Instituto Agronomico and Sr. Carlos Moreira, from Museu Nacional, Rio de Janeiro.]. Boletim da Agricultura (São Paulo) 1: 311-323.

Notes: Title in English: [The result of the study of several collections of scales sent to the Instituto Agronomico and Sr. Carlos Moreira, from Museu Nacional, Rio de Janeiro.] Report on 22 coccids, including 4 described as new.