Elaphrus americanus Dejean, 1831

Fleming, K. J. & Beresford, D. V., 2019, Range Updates for Eight Species of the Subfamily Elaphrinae (Coleoptera: Carabidae) in Ontario'S Far North and Akimiski Island, Nunavut, Canada, The Coleopterists Bulletin 73 (2), pp. 433-439 : 435-437

Elaphrus americanus Dejean

Elaphrus americanus is recorded from all Canadian provinces and two of three territories, Northwest Territories and Yukon Territory ( Bousquet 2012) . It is widely distributed across Ontario , ranging from southwestern Ontario to the northern coast of Hudson Bay at Fort Severn (Fig. 2d). Elaphrus americanus was previously collected in Attawapiskat , Ontario , which is approximately 25 km west of Akimiski Island ( Lindroth 1961; Goulet 1983; www.gbif.org/species/1035545). The three new Ontario records presented in this article were not unexpected and fill in distribution gaps (Fig. 2d). Our new record from Akimiski Island is the first record of E. americanus from Nunavut .

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· USA) records for a) in Blethisa the Far julii North, b) of Blethisa Ontario quadricollis and Akimiski, c) Diacheila Island, Nunavut arctica , and d) Elaphrus americanus , e) Elaphrus californicus , f) Elaphrus lecontei , g) Elaphrus clairvillei , and h) Elaphrus fuliginosus . Elaphrus americanus is generally found along wet beaches of organic, coarse, and firm soil (Goulet 1983).

Elaphrus americanus has two coloration forms, copper and green, and Goulet (1983) noted intermediate colorations occur as well. The specimens that we collected in this study exhibited green, copper, and intermediate coloration forms ( Fig. 3 ).

Elaphrus californicus Mannerheim Elaphrus californicus is widely distributed across North America. Lindroth (1961) notes it generally has a slightly more southern distribution than E. americanus , with its southern limit unknown. Elaphrus californicus has been collected from Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Northwest Territories, Ontario, Prince Edward Island, Québec, and Saskatchewan (Fig. 2e) ( Bousquet 2012). The locations in Ontario are somewhat restricted to southern Ontario and along the northern shore of Lake Superior ( Lindroth 1961; Goulet 1983; www.gbif.org/species/ 1035546). As well, it has been found around Winnipeg and as far north as 50°42 ʹ N in Manitoba. The new record presented here extends the range of E. californicus north by approximately 300 km in Ontario (Fig. 2e). Elaphrus californicus , similar to E. americanus , is exclusively found on beaches of sand, silt, and clay that experience little wind and wave disturbance (Goulet 1983). Our specimens exhibit the gray-green color form, with blue-green punctures and purple near the center of the elytral pits.

Figures

Fig. 3. Color morphs of Elaphrus americanus collected on Akimiski Island, Nunavut, Canada.