Trixagus meybohmi Leseigneur, 2005

Pentinsaari, Mikko, Anderson, Robert, Borowiec, Lech, Bouchard, Patrice, Brunke, Adam, Douglas, Hume, Smith, Andrew B. T. & Hebert, Paul D. N., 2019, DNA barcodes reveal 63 overlooked species of Canadian beetles (Insecta, Coleoptera), ZooKeys 894, pp. 53-150 : 53

Trixagus meybohmi Leseigneur, 2005 Figure 26

Distribution.

Recently described, distribution not yet thoroughly known. Apparently widespread in Europe ( Leseigneur 2005, Mertlik and Leseigneur 2007, Silfverberg 2010, Rassi et al. 2015). Adventive in the Nearctic region (British Columbia, Ontario, Quebec, and Nova Scotia, Canada).

Canadian records.

British Columbia: North Vancouver, 21-Sep-2015 to 02-Oct-2015 (2 exx, CBG); Vancouver, 20-May-2014 to 26-May-2014 (2 exx, CBG); Vancouver, 03-Jun-2014 to 10-Jun-2014 (1 ex, CBG); Vancouver, 12-Aug-2014 to 19-Aug-2014 (2 exx, CBG); Vancouver, 26-Aug-2014 to 02-Sep-2014 (1 ex, CBG); Vancouver, 22-Sep-2014 to 03-Oct-2014 (1 ex, CBG); West Vancouver, 21-Sep-2015 to 02-Oct-2015 (12 exx, CBG). Ontario: Dundas, 22-Sep-2014 to 03-Oct-2014 (1 ex, CBG); Toronto, 21-Sep-2015 to 02-Oct-2015 (3 exx, CBG). Quebec: Montreal, 19-Sep-2014 to 26-Sep-2014 (1 ex, CBG). Nova Scotia: Point Pleasant Park, 25-May-2013 to 01-Jun-2013 (1 ex, CBG); Point Pleasant Park, 14-Jun-2013 to 22-Jun-2013 (1 ex, CBG); Point Pleasant Park, 06-Jul-2013 to 13-Jul-2013 (2 exx, CBG); Point Pleasant Park, 03-Aug-2013 to 10-Aug-2013 (9 exx, CBG); Point Pleasant Park, 10-Aug-2013 to 17-Aug-2013 (7 exx, CBG); Point Pleasant Park, 17-Aug-2013 to 24-Aug-2013 (6 exx, CBG); Point Pleasant Park, 24-Aug-2013 to 31-Aug-2013 (4 exx, CBG); Point Pleasant Park, 31-Aug-2013 to 07-Sep-2013 (1 ex, CBG); Point Pleasant Park, 07-Sep-2013 to 14-Sep-2013 (2 exx, CBG).

Diagnostic information

(based on Leseigneur 2005). Body length 2.4-3.2 mm. Habitus as in Fig. 26A . Eyes deeply emarginate. Head with slender longitudinal carinae, which are parallel or slightly converging towards the vertex. Sides of pronotum not or only slightly sinuate, slightly angulate in males, rounded or weakly angulate in females. Elytral apex in males with a fringe of long setae (setae as long as antennomere 11), which can be tucked under the elytra and may not be visible without removal of the abdomen. Aedeagus as in Fig. 26B .

Bionomic notes.

The Canadian specimens were collected with Malaise traps in city parks and suburban residential areas.

Comments.

Until the North American species of Trixagus are revised, T. meybohmi is most reliably identified using DNA barcodes or male genitalia.

Figures

Figures 25, 26. 25 Trixagus carinifrons (Bonvouloir) 25 A habitus, L. Borowiec 25 B aedeagus 26 Trixagus meybohmi Leseigneur 26 A habitus 26 B aedeagus. Scale bars: 1.0 mm (25 A; 26 A), 0.5 mm (25 B; 26 B).