Ehrhorn, E.M. 1911 New Coccidae with notes on other species.. Canadian Entomologist 43: 275-280.
Notes: Kermes shastensis, Ericoccus eriogoni, E. salinus, Sphaerococcus cupressi, Ceroputo koebelei, Trionymus californicus; notes on 3 other species.
Ehrhorn, E.M. 1911 New Coccidae with notes on other species.. Canadian Entomologist 43: 275-280.
Notes: Kermes shastensis, Ericoccus eriogoni, E. salinus, Sphaerococcus cupressi, Ceroputo koebelei, Trionymus californicus; notes on 3 other species.