Cockerell, T.D.A. 1899n Rhynchota, Hemiptera - Homoptera. [Aleurodidae and Coccidae].. Biologia Centrali-Americana 2: 1-37.

Notes: Collection and sometimes other notes on 164 scale insects, 2 tribes proposed, 2 new genera, 11 new species, 2 subspecies.