Morrison, H. 1928 A classification of the higher groups and genera of the coccid family Margarodidae.. United States Department of Agriculture Technical Bulletin 52: 1-239.

Notes: Critical study, so far as available, of the 268 coccids and the 62 generic units known to belong in this group; diagnosis and keys for genera and higher groups, and keys for some species. Reviewed by Ferris, G.F., Ent. News 39: 325-327.

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