Scolytus muticus Say, 1824, new to Quebec

Species identification confirmed by Hume Douglas, 2016

Note.

As for the above-mentioned Phloeotribus dentifrons, this native species was previously thought to be confined in Canada to the southernmost part of Ontario (all 11 CNCI Canadian specimens are from Pelee Island and Point Pelee National Park). It occurs in association with common hackberry, Celtis occidentalis, in Quebec, but also with dwarf hackberry, Celtis tenuifolia Nutt. (Smith and Cognato 2014), an endangered species, in southern Ontario (COSEWIC 2003). At 2.2-5.3mm, it is the largest member of the genus known to occur in Quebec.

Specimen data.

MRC Vaudreuil-Soulanges, Terrasse-Vaudreuil, 14VI2016 (14:00), white tulle fabric flight interception trap, P. de Tonnancour (1, CPTO); MRC Laval, Laval, rue des Charmes (45.5846, -73.8226), 6VII2016 (15:00), beaten from Celtis occidentalis, P. de Tonnancour (1, CPTO).