Contacyphon obscurellus (Klausnitzer, 1976)

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

Contacyphon obscurellus (Klausnitzer, 1976) Figure 24

Distribution.

Native to North America. Described from New York State (Adirondack, Long Lake) ( Klausnitzer 1976).

Canadian records.

Ontario: Georgian Bay Islands National Park, 30-Jul-2013 to 06-Aug-2013 (1 ex, CBG); Guelph, 30-Jun-2018 (1 ex, CBG); Perth, 03-Jul-2014 to 17-Jul-2014 (1 ex, CBG); Warsaw, 04-Jul-2014 to 18-Jul-2014 (1 ex, CBG). New Brunswick: Kouchibouguac National Park, 19-Aug-2009 (1 ex, CBG). Nova Scotia: Cape Breton Highlands National Park, 14-Jul-2013 to 19-Jul-2013 (1 ex, CBG); Cape Breton Highlands National Park, 19-Jul-2013 to 26-Jul-2013 (1 ex, CBG); Cape Breton Highlands National Park, 02-Aug-2013 to 09-Aug-2013 (1 ex, CBG); Kejimkujik National Park, 08-Aug-2013 to 22-Aug-2013 (1 ex, CBG). Newfoundland: Gros Morne National Park, 25-Jun-2013 to 02-Jul-2013 (1 ex, CBG); Gros Morne National Park, 09-Jul-2013 to 16-Jul-2013 (1 ex, CBG); Gros Morne National Park, 09-Jul-2013 to 20-Jul-2013 (9 exx, CBG); Gros Morne National Park, 10-Jul-2013 to 20-Jul-2013 (47 exx, CBG); Gros Morne National Park, 11-Jul-2013 (1 ex, CBG); Gros Morne National Park, 12-Jul-2013 (2 exx, CBG); Gros Morne National Park, 15-Jul-2013 (1 ex, CBG); Gros Morne National Park, 17-Jul-2013 (1 ex, CBG); Gros Morne National Park, 22-Aug-2013 to 27-Aug-2013 (1 ex, CBG); Terra Nova National Park, 24-Jul-2013 to 30-Jul-2013 (3 exx, CBG).

Diagnostic information

(based on Klausnitzer 1976). Body length 2.4 mm. Brown, elytral suture pale brown, antennae and legs yellow-brown. Male sternite IX and tergite IX as in Fig. 24C, D . Aedeagus as in Fig. 24A, B .

Bionomic notes.

The Canadian specimens were collected in conifer and mixed forests, mainly with Malaise traps.

Comments.

Contacyphon obscurellus belongs to the C. variabilis group of species. It is most reliably identified by its genitalia. The species is split into three closely clustered BINs, which show no obvious morphological differences. The identification of the Canadian specimens is based on dissected male representatives of these BINs.

Figures

Figures 22 - 24. 22 Contacyphon fuscescens (Klausnitzer) 22 A aedeagus, dorsal plate 22 B aedeagus, ventral plate 22 C male tergite 8 and 9 23 Contacyphon kongsbergensis (Munster) 23 A aedeagus, dorsal plate 23 B aedeagus, ventral plate 23 C male sternite 9 and accessory sclerite 24 Contacyphon obscurellus (Klausnitzer) 24 A aedeagus, dorsal plate 24 B aedeagus, ventral plate 24 C male sternite 9 24 D male tergite 9. Scale bars: 0.2 mm (22 A-C; 23 A-C), 0.5 mm (24 A-D).