Drake, Carl J. 1962. "Synonymic changes and four new species of Tingidae (Hemiptera)." Bulletin of the Southern California Academy of Sciences, 60, (3) 156–164.
Drake, Carl J. and Ruhoff, Florence A. 1960. "The identification of Acanthis humuli Fabricius and related species (Hemiptera : Tingidae)." Bulletin of the Southern California Academy of Sciences, 59, ...
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