EMPOASCA (KYBOS) LUDA DAVIDSON AND DELONG - DISTRIBUTION AND HABITS OF AN IMMIGRANT BIRCH-FEEDING LEAFHOPPER IN NORTH-AMERICA (HOMOPTERA, CICADELLIDAE)
Ag. Wheeler, EMPOASCA (KYBOS) LUDA DAVIDSON AND DELONG - DISTRIBUTION AND HABITS OF AN IMMIGRANT BIRCH-FEEDING LEAFHOPPER IN NORTH-AMERICA (HOMOPTERA, CICADELLIDAE), Proceedings of the Entomological Society of Washington, 99(4), 1997, pp. 623-627
The typhlocybine leafhopper Empoasca (Kybos) luda Davidson and De-Long
, though first described from the United States, is believed to be a n
ative European species that has been accidentally introduced into Nort
h America. New state records are given for Maryland, New York, and Pen
nsylvania. Overwintering occurs in the egg stage, and first-generation
adults appear from late May through June; a second generation is prod
uced in mid-to late summer. Nymphs feed on! lower leaf surfaces of Eur
opean white birch (Betula pendula Roth) in landscape plantings, causin
g chlorosis on the upper surfaces. Taxonomic characters are provided t
hat allow this minor pest to be distinguished from a generally more se
rious pest of ornamental birches, the often co-occurring potato leafho
pper, E. fabae (Harris).