New records of Quedius cruentus (Olivier), a Palearctic rove beetle (Coleoptera : Staphylinidae), in northeastern North America

摘要

Specimens of the Palearctic rove beetle Quedius cruentus have been collected in seven northeastern states (Michigan, Ohio, New York, New Jersey, Massachusetts, Maine, Pennsylvania) and one eastern Canadian province (Quebec) from 2001 to the present as a result of exotic bark beetle surveillance projects. Earliest specimen records, based on collections in New York, date back to the early 1980s. The Quebec records are the first for this immigrant species in Canada. All locality records are listed and mapped. Recognition features are described and illustrated, and a summary of its known biology is provided.