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A New Exotic Tingid Species, Corythucha marmorata (Uhler) (Hemiptera: Tingidae) in Korea
Corythucha marmorata (Uhler, 1878), the chrysanthemum lace bug, originally distributes throughout North America. It feeds on plants in the family Asteraceae. In south central New York, it has been known as a common herbivore of Solidago spp. and Aster spp., especially Solidago altissima and Aster novae-angliae. Since the first founding of the lace bug in the western Japan (Hyogo) in 1999, it has rapidly expanded to other areas and sometimes damaged to agricultural crops such as chrysanthemum and sweet potato.
In July 2012, we found the lace bug at Icheon, Gyeonggi Province, in Korea for the first time. Interestingly Aster pilosus Wild., an American exotic plant, was heavily infested with a lot of adults and nymphs of the lace bug at roadside. Subsequent survey indicates that it distributes widely in the central Korea, inhabiting a few wild plants including Erigeron annuus (L.) and Conyza canadensis (L.). In this report, we provide its morphological and molecular characteristics, distribution, host plants, and possible importance as an agricultural pest in Korea.
