Stenus (Stenus) colon Say, 1831

Bedard, Nicolas, Brunke, Adam, Bloin, Pierrick & Leclerc, Ludovic, 2024, New records of rove beetles from the Province of Quebec, and additional provincial records in Canada (Coleoptera, Staphylinidae), ZooKeys 1196, pp. 303-329 : 303

Stenus (Stenus) colon Say, 1831

Fig. 1

Note.

This species was previously only known to reach Ontario in Canada ( Bousquet et al. 2013). It can be separated from the other Stenus species by the wide reniform macula on each elytron, pale femora, usually with dark band at midlength, and the head broader than the elytra. In the northeast, it is unmistakable and does not resemble any other known species. It resembles to the more southerly distributed Stenus renifer Lec., from which it can be readily distinguished by its larger size, broader elytra, and denser abdominal punctuation.

Specimen data.

Canada: QUEBEC - MRC de Memphremagog, Potton (45.0162, -72.4344), 20.VII-5.VIII.2022, N. Bédard, pitfall trap on a sandy river shore (1, NBC). - Ville de Québec, Cap-Rouge (46.7543, -71.3464), 29.VI.2023, C. Tessier, on a river bank (3, CTC). - Ville de Lévis, St-Nicolas (46.6902, -71.3120), 29.IX.2009, C. Tessier, sifting grass pile near a wetland (1, CTC).

Distribution in Canada.

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

Subfamily Euaesthetinae Thomson, 1859

Figures

Figures 1, 2. Habitus and aedeagus of 1 Stenus colon Say, 1831, aedeagus dorsal view 2 Arpedium schwarzi Fauvel, 1878, aedeagus ventral view.