Centrinopus helvinus Casey, 1892

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

Centrinopus helvinus Casey, 1892 Figure 45

Distribution.

Native to the Nearctic and Neotropical regions. Recorded from eastern and north central United States, and southward to Nicaragua ( O’Brien and Wibmer 1982).

Canadian records.

Ontario: Waterloo, 21-Sep-2015 to 02-Oct-2015 (1 ex, CBG); Waterloo, 19-Sep-2016 to 30-Sep-2016 (1 ex, CBG).

Diagnostic information

(based on Casey 1920 and Anderson 2002). Body length: 2.0-2.7 mm. Body dark red-brown to black, oval, covered dorsally with pale scales, oriented perpendicularly to body axis on pronotum, oriented longitudinally on elytra ( Fig. 45 ). Scales somewhat denser on elytral interstriae 3, 5, 7. Prothorax only slightly narrower than elytra in dorsal view. Scutellum densely covered with scales. Female with sharply defined longitudinal sulcus anterior to procoxae. Each procoxa in male with one anteriorly projecting spine-like process in front.

Bionomic notes.

Kissinger (1964) mentioned that adults in this genus are found on flowers of Asteraceae . According to Blatchley and Leng (1916) Centrinopus helvinus was taken on sweetscented joe pye weed, Eutrochium purpureum (L.) E.E. Lamont. We are not aware of any additional biological information published on this species. The barcoded Canadian specimens were collected with a Malaise trap on farmland.

Comments.

The genus Centrinopus Casey, 1892, which is in need of a taxonomic revision ( Anderson 2002), contains six species in the eastern United States and is recorded here from Canada for the first time.

Figures

Figures 44, 45. 44 Notaris scirpi (Fabricius), habitus, L. Borowiec 45 Centrinopus helvinus Casey, habitus. Scale bar: 2.0 mm (44), 1.0 mm (45).