A NEW EXOTIC THREAT TO NORTH-AMERICAN HARDWOOD FORESTS - AN ASIAN LONGHORNED BEETLE, ANOPLOPHORA-GLABRIPENNIS (MOTSCHULSKY) (COLEOPTERA, CERAMBYCIDAE) - I - LARVAL DESCRIPTION AND DIAGNOSIS

Anoplophora glabripennis (Motschulsky), an Asian longhorned beetle nat ive to eastern China, Korea, and Japan, was discovered in the New York City area attacking various hardwood trees in August 1996. This repre sents the first known infestation of any member of the lamiine genus A noplophora in North America. To better enable identification of the im mature stages of this important exotic forest pest, the mature larva i s thoroughly described and illustrated with the use of photomicrograph s. In addition, the larva of A. glabripennis is compared with North Am erican larvae of the hardwood-feeding genera Xylotrechus, Neoclytus, S aperda, and Glycobius and of the conifer-feeding, morphologically simi lar genus Monochamus.