Lasionycta leucocycla leucocycla (arctic North America from Greenland and Ellesmere Island west to northern Yukon)
Lasionycta leucocycla moeschleri (eastern Canada from the east coast of Hudson Bay and southern Labrador north to the arctic islands near the Ungava Peninsula, Quebec)
Lasionycta leucocycla hampa (White Mountains of New Hampshire)
Lasionycta leucocycla albertensis (west-central Alaska and central Yukon southward in the Rocky Mountains to the Beartooth Plateau on the Montana-Wyoming border and the Russian Far East)
Lasionycta leucocycla magadanensis (Eurasia)
Lasionycta leucocycla dovrensis is formally treated as a subspecies of Lasionycta leucocycla, but might be a valid species, in which case Lasionycta leucocycla altaica would probably be a subspecies of Lasionycta dovrensis.
Lasionycta staudingeri is a moth of the family Noctuidae. It can be found from Oppland to Finland and Norway in Europe, as well as Siberia and North America.
Lasionycta skraelingia is a moth of the family Noctuidae. It has a Holarctic distribution, occurring from Scandinavia to north-western North America. In North America this species is known from three specimens from Windy Pass, Ogilvie Mountains, Yukon.
Lasionycta taigata is a moth of the family Noctuidae. It occurs in open peatlands and fens in the taiga zone from Labrador, Churchill, Manitoba, and central Yukon, southward to northern Maine, northern Minnesota, and south-western Alberta.
Lasionycta secedens is a moth of the family Noctuidae. It has a Holarctic distribution. North American populations are distributed from Labrador, northern Manitoba, and Alaska, southward to northern Maine, northern Minnesota, and south-central British Columbia. Subspecies bohemani occurs in northern Eurasia, Alaska and Yukon.
Lasionycta phaea is a moth of the family Noctuidae. It is an arctic species and has been collected from Baffin Island in north-eastern Canada to the central Brooks Range in northern Alaska and southward along the west coast of Hudson Bay to Arviat, Nunavut.
Lasionycta fergusoni is a moth of the family Noctuidae. It is found from the southern Washington Cascades through British Columbia and Alberta to southern Yukon.
Lasionycta luteola is a moth of the family Noctuidae. It is found from northern Washington and south-western Alberta northward to south-western Yukon.
Lasionycta flanda is a moth of the family Noctuidae. It is found on the island of Newfoundland and at Goose Bay in eastern Labrador.
Lasionycta coracina is a moth of the family Noctuidae. It is found in the Richardson and British Mountains in northern Yukon, adjacent Northwest Territories, and Cape Thompson in north-western Alaska.
Lasionycta illima is a moth of the family Noctuidae. It is found from Pink Mountain in north-eastern British Columbia through southern Yukon to eastern Alaska.
Lasionycta frigida is a moth of the family Noctuidae. It has a restricted range in the Alberta Rocky Mountains. It is possibly also present in Yukon and Alaska.
Lasionycta perplexa is a moth of the family Noctuidae. It is widely distributed from southern Alaska and Yukon in the north to California, Utah, and Colorado in the South. A disjunct population is found on the east coast of Hudson Bay at Kuujjuaraapik.
Lasionycta perplexella is a moth of the family Noctuidae. It is found from southern Yukon to southern Alberta and southern Washington.
Lasionycta subfumosa is a moth of the family Noctuidae. It is found from Victoria Island and Banks Island in the Northwest Territories and the Darby Mountains on the Seward Peninsula of Alaska.
Lasionycta quadrilunata is a moth of the family Noctuidae. It is found from south-central Alaska down the spine of the Rocky Mountains to Colorado.
Lasionycta carolynae is a moth of the family Noctuidae. It is found in the Ogilvie and Richardson Mountains in Yukon.
Lasionycta uniformis is a moth of the family Noctuidae. It is widely distributed in the mountains of western North America. It occurs from southern Yukon to northern California and Colorado, with an isolated population in eastern Quebec.
Lasionycta promulsa is a moth of the family Noctuidae. It occurs from Rampart House in northern Yukon to south-western British Columbia in the west and southern New Mexico in the Rocky Mountains.
Lasionycta impingens is a moth of the family Noctuidae. It occurs from southern Yukon to Colorado.
Tricholita ferrisi is a moth of the family Noctuidae. It is only known from Onion Saddle in the Chiricahua Mountains and Ash Canyon in the Huachuca Mountains of extreme south-eastern Arizona at elevations between 1,575 and 2,325 metres. This is the Madrean Sky Islands region of the northern Sierra Madre Occidental's sky islands.
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