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Works (5)
1992 book
A key to many of the common alate aphids of North Carolina (Aphididae: Homoptera)
In A key to many of the common alate aphids of North Carolina (Aphididae: Homoptera) (p. 92). Raleigh, NC : North Carolina Agricultural Research Service, North Carolina State University.
1984 journal article
LIFE-HISTORY AND SYNONYMY OF GRYLLOPROCIPHILUS-IMBRICATOR (FITCH) (HOMOPTERA, APHIDIDAE)
FLORIDA ENTOMOLOGIST, 67(3), 430–434.

1979 journal article
An annotated list of Aphididae (Homoptera) of the Caribbean Islands and South and Central America
Technical Bulletin (North Carolina Agricultural Research Service), (259), 131.
1978 journal article
An annotated list of Aphididae (Homoptera) of North America
Technical Bulletin (North Carolina Agricultural Experiment Station), (255), 428.
1974 journal article
Keys to and descriptions of the genera of Pemphigini in North America (Homoptera: Aphididae: Pemphiginae)
Technical Bulletin (North Carolina Agricultural Experiment Station), (226), 61.