Spiders of the Yukon - Department of Biological Sciences

Spiders of the Yukon 105
Yukon records: Sheep Mt. and Christmas Bay, Kluane National Park; Whitehorse; Old Crow;
Carmacks.
Biological information: In litter in spruce bogs.
295. Sitticus lineolatus (Grube) Holarctic, Subarctic/Alpine
Distribution: Alaska to Newfoundland, south to Oregon and Wyoming; Siberia (Nenilin 1985).
Yukon records: km 82 and 132 Dempster Hwy.; Carcross; Dry Cr.; Sheep Mt., Kluane National Park.
Biological information: On dunes and among stones on alpine tundra.
296. Sitticus palustris (Peckham and Peckham) Nearctic, Boreal
Distribution: Yukon to Newfoundland, south to California and New England.
Yukon records: Haines Jct.; Carmacks.
Biological information: On foliage of deciduous shrubs and trees.
297. Talavera minuta Banks Nearctic-West Beringian, Boreal
Distribution: Yukon to Massachusetts, south to California; northeastern Siberia.
Yukon records: Carmacks.
Biological information: In litter.
Additional Species Expected from the Yukon
The following species of spiders probably are represented in the Yukon and their
presence may well be confirmed by future collecting.
Family Dictynidae
298. Dictyna borealis O.P.-Cambridge. Recorded from Tuktoyaktuk, Northwest Territories. Nearctic-
West Beringian. Under stones in arctic and alpine tundra.
Family Amaurobiidae
299. Amaurobius borealis Emerton. Recorded from Morely R. Lodge (59°57′N 132°01′W), British
Columbia. Nearctic. In leaf litter under deciduous trees and shrubs.
Family Theridiidae
300. Crustulina sticta (O.P.-Cambridge). Holarctic. Among herbs, in litter.
301. Enoplognatha tecta (Keyserling). Recorded from Matanuska, Alaska. Nearctic-West Beringian.
Under stones and ground debris.
302. Robertus lividus (Blackwall). Holarctic. On herbs, in moss and litter.
303. Steatoda borealis (Hentz). Nearctic. In tree crevices.
304. Theonoe stridula Crosby. Nearctic. In moss and litter.
305. Theridion pictum (Walckenaer). Recorded from Inuvik, Northwest Territories and from Jackfish
L., Alaska Hwy., British Columbia. Holarctic. On foliage of conifers.
306. Theridion saanichum Chamberlin and Ivie. Cordilleran. On herbs.
Family Linyphiidae
307. Bathyphantes canadensis (Emerton). Recorded from Umiat, Alaska and Norman Wells, Northwest
Territories. Holarctic. In plant litter and under stones.
308. Lepthyphantes turbatrix (O.P.-Cambridge). Recorded from Summit L., Alaska Hwy., British
Columbia. Nearctic. Under stones.
309. Poeciloneta vakkhanka Tanasevitch**. Recorded from Involuted Hills, Northwest Territories
(69°28′N 132°32′W). East-West Beringian. On grass tussocks in tundra.
Family Erigonidae
310. Ceratinella alaskae Chamberlin and Ivie. Known from Haines, Alaska. Nearctic-West Beringian.
In litter.
311. Collinsia thulensis (Jackson). Known from Tuktoyaktuk, Northwest Territories. Holarctic.
Among stones and in tundra litter.