Acerocnema merga Chagnon & Sinclair 2021, sp. nov.

• Main Authors: Chagnon, Marie-Eve, Sinclair, Bradley J.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Scathophagidae; Acerocnema; Acerocnema merga; Nunavut; Yukon; Canada; Leech; Sinclair; Cambridge Bay; Firth River; Herschel; Alaska
• Online Access: https://zenodo.org/record/4701400; https://doi.org/10.5281/zenodo.4701400

Acerocnema merga sp. nov. (Figs 3, 4, 10, 11, 16, 20, 24) urn:lsid:zoobank.org:act: 1973FD2A-C8F3-4077-AF37-3981721EF4E0 Type material examined. HOLOTYPE ♂ labelled: “Herschel I., Y. T./ 7-16 July 1971 / W. R. M. Mason ”; “ HOLOTYPE / Acerocnema / merga / Chagnon & Sinclair [red label]”; “ CNC/ 1589603 ” (CNC). PARATYPES: CANADA. Nunavut: Cambridge Bay, 69.1193° -105.42065°, Repl.1 mesic, Malaise, 7–11.vii.2011, NBP Field Party (1♂, LEM); same data except, 69.1277° -105.41688°, Repl.1 wet (1♂, LEM); 69.12177° -105.41688°, Repl.1 wet, Malaise, CCBD-21325-G12 (1♀, barcode associated, LEM); same data except, 69.12070° -105.42582°, Repl.2 mesic, 11–15.vii.2011 (1♂, LEM); Cambridge Bay, 69.0943°, -105.445°, 13.vii.2018, CBG Team 1, CHARS00072 -F06 (1♂, barcoded, CBG). Yukon: mi 87 [km 140] Dempster Hwy [ca. 64°34′N 138°15′W], 16–17.vii.1973, G. & D.M. Wood (1♀, CNC); km 155 Dempster Hwy [ca. 65°37′N 138°10′W], 11–12.vii. 1981, 950 m, D. Lafontaine & G. & M. Wood (1♀, CNC); British Mts. [69°13′N 140°05′W], 27.vii.1956, R. E. Leech (1♀, CNC); British Mts., 69°13′N 140°05′W, 21–25.vi.1984, G. & M. Wood & D. Lafontaine (1♀, 3♂, CNC); British Mts., tributary to Firth River [69°13′N 140°05′W], 20–28.vi.1984, G. & M. Wood (1♂, CNC); Dempster Hwy km 140, 65.0319° -138.1779°, 900 m, swp nr pond in forest, 13.vii.2013, S. Rochefort (1♂, LEM); Firth River [68°50′10.9″N 140°36′00.9″W], 13.vii.1956, R. E. Leech (1♂, CNC); Herschel Is. [69°34′45.7″N 138°54′19.2″W], 7–16.vii.1971, W. R. M. Mason (4♀, 3♂, CNC); same data except, 24–28.vii.1971 (2♀, CNC). USA. Alaska: Cape Thompson [68°08′38.1″N 165°58′39.4″W], 23.vii.1961, R. Madge (2♀, CNC); Deering [66°04′32.5″N 162°43′20.0″W], 30.vii.1969, J. Matthews (1♀, CNC). Possible additional material. Cambridge Bay, 69.11993° -105.42065°, Repl.1 mesic, Malaise, 7–11.vii.2011, NBP Field Party, CCBD-21325-G11 (1♀, barcoded [failed], LEM). Diagnosis. This species is distinguished by the brightly yellow postpedicel in males, with at least base of postpedicel pale in ...