Ablabesmyia (Ablabesmyia) monilis

• Main Author: Saether, Ole A.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Ablabesmyia; Ablabesmyia monilis; Canada; British Columbia; Paterson; Beaver Creek
• Online Access: https://zenodo.org/record/5679777; https://doi.org/10.5281/zenodo.5679777

Ablabesmyia (Ablabesmyia) monilis auct nec Linné, 1758. (Figs 2 F; 3 F; 4 F, M; 5 H; 9 A.–C; 10) Ablabesmyia (Ablabesmyia) americana Fittkau, 1962: 429; Stur & Ekrem 2011: 46; nomen dubium. The different stages are illustrated. Material examined. CANADA: British Columbia, British Columbia, Marion Lake, 7 males, 15–17.vii 1964, 30.iv.– 10.vi. and 18.viii. 1965, A. L. Hamilton; Manitoba, Heming Lake, 2 males reared from larvae 11.vi.– 27.vi. 1967, A. P. Wiens; Ontario, Kenora, Experimental Lakes Area, Lake 122, male reared from larva, 22.vii. 1968, S. S. Chang; Ontario, Waterloo, male, 13.vi. 1968, C. G. Paterson. Lake Winnipeg records: 2 km off Selkirk (Horse) Island, 1 male, 7.vi. 1969; 4 km off Grand Rapids, 8.vi. 1969; McBeth Harbour, 1 male, 30.vii. 1969; Beaver Point, 1 male; 30.vi. 1971; Old Fishing Dock, 17 males, 8.ix. 1971; Beaver Creek, emergence trap, 7 males, 16.vi. – 8.viii. 1971; Calder's Dock, 1 female reared from larva, 11.vi. 1971. Remarks. Stur and Ekrem (2011: 46) found that analysis of partial COI gene sequences showed differences sufficient to treat A. monilis and A. americana as different species. Roback (1971: 376) found no valid differences between two European specimens of A. monilis and his Nearctic material. His illustrations of the aedeagus (figs. 572–575), however indicates that there may be some difference in the shape and width of blade of the male aedeagus. The seminal capsules of the females are dark in oral half in the Nearctic specimens (Saether 1977 fig. 21 A), while according to Stur and Ekrem (2011) they are pale in the Palaearctic specimens. The Nearctic pupae had much stronger and darker veins on the wing pads than the few Palaearctic specimens examined. Fittkau (1962: 429) proposed “ Ablabesmyia americana n. spec. (= Pentaneura monilis, Johannsen 1905)" as a new species, which satisfies the requirements for availability in ICZN (1999) articles 13.1. 1. and 13.1. 2. However, according to Roback (1971: 378) Johannsen’s material of “ A. monilis ” consists of at least two ...