Spiders of the Yukon - Department of Biological Sciences

Spiders of the Yukon 85
Biological information: In plant litter in coniferous woods.
96. Grammonota angusta Dondale Nearctic, Boreal
Distribution: Yukon to Newfoundland, south to British Columbia, South Dakota, and northern New
England.
Yukon records: km 17 Canol Road; Gravel L., 93 km E Dawson.
Biological information: On coniferous foliage.
97. Hilaira gibbosa Tanasevitch** Palaearctic-East Beringian, Arctic
Distribution: Northern Northwest Territories; Siberia (Tanasevitch 1982; Eskov 1988d), Mongolia.
Yukon records: Cultus Bay, Kluane National Park.
Biological information: In litter on tundra.
98. Hilaira herniosa (Thorell) Holarctic, Boreal
Distribution: Alaska to Greenland and Newfoundland, south to British Columbia and northern New
England; Europe, Siberia (Eskov 1981).
Yukon records: North Fork Pass, Ogilvie Mts.; Carmacks.
Biological information: In plant litter in coniferous woods and on tundra.
99. Hilaira incondita (L. Koch)** East-West Beringian, Arctic
Distribution: Yukon and northwestern Northwest Territories; northern Siberia (Eskov 1981).
Yukon records: Running R. (68°57′N 137°17′W).
Biological information: In tundra litter.
100. Hilaira frigida (Thorell) Palaearctic-East Beringian, Arctic
Distribution: The species frigida is Holarctic; the subspecies H.f. intercepta (O. P.-Cambridge) occurs
in Alaska and Yukon, and in Siberia (Eskov 1981).
Yukon records: North Fork Pass, Ogilvie Mts.; km 140.5, 172, and 465 Dempster Hwy.; Dall Ridge
Valley to Fish Cr. (67°59′N 136°32′W); June Cr., near Firth R. (69°13′N 140°05′W); Erebia Cr., on
Fish Cr. (67°58′N 136°29′W).
Biological information: In litter on tundra.
101. Hilaira mentasta (Chamberlin and Ivie) Nearctic, Boreal
Distribution: Alaska to Newfoundland.
Yukon records: Mayo.
Biological information: In litter in bogs and swamps.
Taxonomic notes: Eskov (1981) showed that H. mentasta does not belong in the genus Hilaira but did
not place it elsewhere. Chamberlin and Ivie (1947) described it in “Erigone”, also incorrect.
102. Hilaira sibirica Eskov** Palaearctic-East Beringian, Boreal
Distribution: Alaska and Yukon; Siberia (Eskov 1987a).
Yukon records: North Fork Pass, Ogilvie Mts.; km 172 Dempster Hwy.
Biological information: In litter on shrubby tundra.
103. Hilaira tatrica Kulczy:ski Nearctic-West Beringian,
Subarctic/Alpine
Distribution: Alaska to northern Quebec, south to Colorado; northeastern Siberia (Eskov 1981). The
species tatrica occurs in Palaearctic and Nearctic, the subspecies t. garrina Chamberlin is Nearctic.
Yukon records: Moose Cr. (63°31′N 137°01′W); Sheep-Bullion Plateau, Kluane National Park.
Biological information: In litter in conifer and willow stands.
104. Hilaira vexatrix (O. P.-Cambridge) Nearctic-West Beringian, Arctic
Distribution: Alaska to Greenland; northeastern Siberia (Eskov 1981).
Yukon records: Summit L., Richardson Mts. (67°43′N 136°30′W); Running R. (68°57′N 137°17′W);
Herschel Is.
Biological information: In tundra litter.
105. Horcotes quadricristatus (Emerton) Nearctic, Subarctic/Alpine
Distribution: Yukon to Labrador, south to British Columbia and northern New England.
Yukon records: km 64 Dempster Hwy.; Old Crow; June Cr. delta (69°09′N 140°10′W).
Biological information: In litter in willow clumps and on tundra, and in limestone outcrops.