
Photo by Whitney Cranshaw, Colorado State University, Bugwood.org

Sweetpotato or silverleaf whitefly: Usually yellowish white; wings tightly held against body, giving a cylindrical appearance; forewing with one vein, bent slightly mesad at about 2/3 of wing, no distinct ridge or trace of fork.
Photo by Scott Bauer, USDA Agricultural Research Service, Bugwood.org
Whitefly identification diagrams from the USDA/University of Florida website: http://whiteflies.ifas.ufl.edu/wfly0002.htm
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