NEW RECORDS OF IMMIGRANT BARK BEETLES (COLEOPTERA, SCOLYTIDAE) IN NEW-YORK - ATTRACTION OF CONIFER-FEEDING SPECIES TO ETHANOL-BAITED TRAP LOGS

A 1993 survey for the recently detected pine shoot beetle, Tomicus pin iperda, in New York, conducted by Division of Plant Industry field per sonnel, New York State Department of Agriculture and Markets, has yiel ded specimens of two other non-indigenous bark beetles (Scolytidae). T rap logs of Pinus sylvestris and P. resinosa, baited with 95% ethanol, were placed at 100 sites across New York state, particularly in high risk areas. Pine shoot beetle was collected at 12 sites in 5 countries of western New York. Pityogenes bidentatus, a Palearctic species firs t detected in North America in New York in 1989, was trapped at two ne w localities in western New York. The European Hylastes opacus, known previously in North America from a single locality on Long Island, New York, was trapped at 32 sites in 22 countries throughout the state. L ocalities for all new records are listed and plotted on distribution m aps. North American interception records, native distribution, economi c importance, and diagnostic features for H. opacus are provided, and an existing key to North American Hylastes is modified to include this new adventive member of the fauna. Data on relative abundance are pro vided for other species of conifer-feeding bark beetles that were trap ped, which included: Dendroctonus terebrans, Dendroctonus valens, Dryo coetes autographus, Gnathotrichus materiarius, Hylastes porculus, Hylu rgops rugipennis pinifex, Ips grandicollis, Ips pini, Orthotomicus cae latus, Pityophthorus sp. prob. puberulus, and Polygraphus rufipennis.