Canadian Forest Service Publications
Two new species of Tuberculatus subg. Pacificallis from California (Homoptera: Aphididae). 1992. Quednau, F.W. The Canadian Entomologist 124(6): 1075-1083.
Issued by: Laurentian Forestry Centre
Catalog ID: 16468
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Tuberculatus (Pacificallis) passalus sp.nov. and T. (P.) chrysolepidis sp.nov. are described and their relationship with other species of the subgenus Pacificallis is discussed. The status of T. (P.) quercifolii (Davidson) is elucidated. A key for the identification of the species of the subgenus is presented.