Thesium cavifrons (LeConte, 1863)

Note.

See Grigarick and Schuster (1980) and Chandler (1989) for identification and illustrations. This species is the only Thesium in northeast North America (Chandler 2000). It can be readily distinguished from the other members of Euplectini by the carinate prosternum and the clearly separated mesocoxal cavities. In addition to the literature cited above for its identification, photos of the holotype are accessible via the MCZ website (type #27740).

Specimen data.

Canada: QUEBEC - Gatineau City, Buckingham (45°34'N, 75°28'W) 3-10.VII.2000, C. Hébert (Canadian Forest Service), Projet Verglas (1, CNC).

Distribution in Canada.

ON, QC (Bousquet et al. 2013) - New to Quebec.

Subfamily Scydmaeninae Leach, 1815