Spiders of the Yukon - Department of Biological Sciences

Spiders of the Yukon 83
75. Cnephalocotes obscurus (Blackwall) Holarctic, Boreal
Distribution: Yukon to Quebec; Eurasia west of Ural Mountains.
Yukon records: km 155 Dempster Hwy.
Biological information: In litter and moss.
76. Collinsia dentata Eskov** East-West Beringian, Arctic
Distribution: Yukon; Siberia.
Yukon records: North Fork Pass, Ogilvie Mts.
Biological information: In litter.
77. Collinsia holmgreni (Thorell) Holarctic, Arctic
Distribution: Alaska to Greenland, south to Mount Washington, New Hampshire; Iceland, northern
Europe, northern Siberia.
Yukon records: km 465 Dempster Hwy.; Trout L. (68°50′N 138°45′W); Herschel Is.; Fish Cr. (69°27′N
140°23′W); Erebia Cr. (67°58′N 136°29′W).
Biological information: In willow litter.
Taxonomic notes: Eskov (1989d) rejected synonymy of Collinsia with Halorates.
78. Dactylopisthes video (Chamberlin and Ivie) Palaearctic-East Beringian, Arctic
Distribution: Alaska and Yukon; northern Siberia (Eskov 1990b).
Yukon records: Old Crow.
Biological information: On pebbly beaches.
79. Diplocentria bidentata (Emerton) Holarctic, Boreal
Distribution: Alaska to Newfoundland, south to Utah, Colorado, and northern New England (Millidge
1984); Eurasia west of Ural Mountains.
Yukon records: North Fork Pass, Ogilvie Mts.; Kathleen L.; km 155 Dempster Hwy.; British Mts.
(67°59′N 136°32′W); Richardson Mts. (67°59′N 136°32′W).
Biological information: In plant litter and among stones.
80. Diplocentria perplexa (Chamberlin and Ivie) Cordilleran, Subarctic/Alpine
Distribution: Yukon and northwestern Northwest Territories south through the Cordillera to Utah
(Millidge 1984).
Yukon records: Carcross.
Biological information: In alpine meadows, dunes, and on the ground in spruce-pine woods.
81. Diplocentria rectangulata (Emerton) Holarctic, Boreal
Distribution: Yukon and northwestern Northwest Territories to Newfoundland, south to British
Columbia and northern New England (Millidge 1984); Central Europe.
Yukon records: North Fork Pass, Ogilvie Mts.
Biological information: In plant litter.
82. Diplocephalus barbatus (L. Koch) Holarctic, Arctic
Distribution: Alaska and northern Northwest Territories including the Arctic islands to northern
Greenland; Spitzbergen and arctic coast of Siberia (Eskov 1988b).
Yukon records: Herschel Is., Blow R. (68°56′N 137°06′W).
Biological information: On arctic tundra.
83. Dismodicus alticeps Chamberlin and Ivie Nearctic, Boreal
Distribution: Alaska to Newfoundland, south to British Columbia and northern New England.
Yukon records: Kathleen L.; Old Crow; 22 and 93 km E Dawson.
Biological information: In plant litter.
84. Dismodicus bifrons (Blackwall) Holarctic, Boreal
Distribution: Alaska and Yukon to Greenland and Newfoundland, south to Montana and northern New
England; Europe, Asia.
Yukon records: North Fork Pass, Ogilvie Mts.; Old Crow.
Biological information: In plant litter.
Taxonomic notes: D. bifrons is Holarctic, with the North American form H. decemoculatus (Emerton)
being accorded subspecific status by Hackman (1954).