Xylem composition is a dynamic resource within a single plant over time, as well as between plant species. Xylem feeding leafhoppers have evolved several adaptations to utilize variable xylem chemistries including polyphagy and high vagility coupled with excellent color visual acuity. The nymphs of Homalodisca coagulata, H. insolita, and Oncometopia nigricans can discriminate colors as well as survive over 80 hours without feeding. Additionally, nymphal stages of H. coagulata can disperse up to 20 meters per day in the field.
Species 1: Homoptera Cicadellidae Homalodisca coagulata (glassy-winged sharpshooter)
Species 2: Homoptera Cicadellidae Homalodisca insolita
Species 3: Homoptera Cicadellidae Oncometopia nigricans (black-winged leafhopper)
Keywords: dispersal, vision
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