| 1. | Also called smaller European elm bark beetle. a shiny, dark reddish-brown bark beetle, Scolytus multistriatus, originating in Europe and now widespread in the U.S.: the primary vector of Dutch elm disease. |
| 2. | Also called native elm bark beetle. a bark beetle, Hylurgopinus opaculus, of eastern North America, that also transmits Dutch elm disease. |
