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Title Sixth taxonomic study of North American mealybugs, with additional species from South America (Homoptera: Coccoidea: Pseudococcidae)
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One new pseudococcid genus, Prorhizoecus, and 15 new species are described and illustrated in this paper. Only three of the new species were collected in California: Dysmicoccus polymeris, Pseudococcus beardsleyi, and Spilococcus nototrichus. Other new North American species were collected as follows: Trionymus strongylus, Arizona; T. idahoensis, Idaho; Cataenococcus mexicanus, Hypogeococcus othnius, Prorhizoecus atopoporus, Rhizoecus neostangei, Spilococcus villanuevai, Trionymus coronus, Mexico; and Chorizococcus coniculus, New Mexico. Four Central and South American species are described: Dysmicoccus brachydactylus and D. dactylus, Chile; Hypogeococcus othnius, Costa Rica, Guatemala, Nicaragua, and Venezuela; Mammicoccus balachowskyi, Peru.

Revised keys to North American species are given for the genera Cataenococcus, Chorizococcus, Dysmicoccus, Hypogeococcus, Pseudococcus, Rhizoecus, Spilococcus, and Trionymus. In addition, a key to the two species of Mammicoccus is presented.

Authors
Miller, Douglass R. : Douglass R. Miller was formerly Research Assistant in Entomology, Davis. He is now with the Systematic Entomology Laboratory, Agricultural Research Service, U. S. Department of Agriculture, Washington, D.C.
McKenzie, Howard L. : The late Howard L. McKenzie was Entomologist in the Experiment Station, Davis.
Publication Date Jun 1, 1971
Date Added Sep 17, 2014
Copyright © The Regents of the University of California
Copyright Year 1971
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