Atheta (Microdota) platanoffi Brundin, 1948

CANADA: BRITISH COLUMBIA: Creston, near Kootenay Pass, 1500-1800 m, 18.VIII.1982, R. Baranowski, (1m, LFC) ; 20 km northeast of Creston, 14.VIII.1982, R. Baranowski, (1f, LFC) . NOVA SCOTIA: Colchester Co.: Bible Hill, 8.VII.2007, C.W. D’Orsay, pasture, (1, CBU) . ONTARIO: Algoma Co.: Michipicoten River ( South of Wawa), 5.IX.1980, R. Baranowski, (1f, MZLU) ; Wawa, 8.IX.1980, R. Baranowski, (1f, MZLU) ; Nippising Co.: Algonquin Provincial Park near Brent, 20.VIII.1980, 21.VIII.1980, 22.VIII.1980, R. Baranowski, (3m, MZLU; 7f, MZLU) ; Sudbury Co.: Mattagami, 25.VIII.1980, R. Baranowski, (3m, MZLU; 2f, MZLU; 2f, LFC) ; 30 km southwest of Foleyet, 29.VIII.1980, R. Baranowski, (1f, MZLU) ; 40 km northeast Gogama, Mattagami River, 27.VIII.1980, R. Baranowski, (1f, MZLU) .

This Holarctic species is newly recorded in British Columbia, Nova Scotia, and Ontario. In Europe it has been recorded in Finland, Sweden, and northern Russia (Smetana 2004). It is found in forest litter.