Drymeia segnis (Holmgren, 1883)

Savage, Jade & Sorokina, Vera S., 2021, Review of the North American fauna of Drymeia Meigen (Diptera, Muscidae) and evaluation of DNA barcodes for species-level identification in the genus, ZooKeys 1024, pp. 31-89 : 31

Drymeia segnis (Holmgren, 1883) Fig. 3B

Aricia segnis Holmgren, 1883: 169.

Pogonomyioides atrata Malloch, 1919: 67.

Type material examined.

Pogonomyioides atrata Malloch. Holotype female (with puparium) labelled "Bernard/ Harbour/ N.W. T./July 7. [vertical]"; "Canadian/ Arctic/ Expedition/ F.J. 1915"; “1215” / "Type/ No. 1180 [red]"; " SLIDE Coll./ A 162 [blue]" [head mounted on slide] ( CNC).

Other material examined.

More than 500 males and females: Nearctic: Canada: Alberta: Eisenhower Jct., Snow Creek Pass (Banff N. P.); Northwest Territories: Holman, Banks Island (Aulavik, Masik river), Sachs Harbour, Tuktoyaktuk; Victoria island; Nunavut: Alex Fiord, Arviat [formerly Eskimo point], Axel Heiberg Island, Baker Lake, Cambridge Bay, Chesterfield, Clyde, Coral Harbour, Devon Island, Ellesmere island, Eureka, Hazen Camp, Kugluktuk, Landing Lake (7.5 km NW of Rankin inlet), Meliadine river, Naujaat [formerly Repulse Bay], Taloyoak [formerly Spence Bay], Tranquary Fjord; Quebec: Inukjuak [formerly Port Harrison]; Yukon Territory: British Mts, Firth River, Herschel Island, Richardson Mts. USA: Alaska: Upper Colville River; Colorado: Mt. Evans. Greenland: Nedre Midsommer Sö. Palaearctic: Russia: Taymyr Peninsula: 90 km NW Khatanga, Ary-Mas cordon, Dixon; Chukotka AO: Wrangel Island; Sakha Republic: 19 km SE Kyusyur, ( BUIC, CNC, LEM, SZMN).

Distribution.

Nearctic: Canada (Alberta, Manitoba, Northwest Territories, Nunavut, Quebec, Yukon Territory), USA (Alaska, Colorado), Greenland . Palaearctic: Russia.

DNA Barcode.

BOLDBIN: BOLD:AAD7664 (BIN merge with several other species, see Fig. 25 ). See Suppl. material 1: Table S1 for GenBank accession numbers.

Remark.

DNA barcodes for D. segnis material from Canada and Greenland were very similar to several of the seven species found in the BOLD:AAD7664BIN merge (Fig. 25 ) and in some cases, identical to those of D. setibasis . However, both sexes of D. segnis can easily be distinguished from all other species in this BIN by the presence of a haired anepimeron. We would therefore not recommend using COI to discriminate specimens of D. segnis from those of other species in this BIN.

Figures

Figure 3. A D. chillcotti, male abdomen B D. segnis, male habitus, frontal view. Scale bars: 1 mm.

Figure 25. Neighbour-joining tree based on p-distance of all COI sequences (> 550 bp) for which specimens were examined. Each terminal includes the species name, BOLD process ID number, country of collection, and Barcode Index Number. Red text indicates the presence of more than one named species grouped under a single BIN (BIN merge).