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Species Sisicus penifusifer

Sisicus penifusifer - female Sisicus penifusifer (epigyne) - Sisicus penifusifer - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Linyphiidae (Sheetweb and Dwarf Spiders)
Subfamily Erigoninae (Dwarf Spiders)
Genus Sisicus
Species penifusifer (Sisicus penifusifer)
Synonyms and other taxonomic changes
Current combination: Sisicus penifusifer Bishop & Crosby, 1938
Tiny spiders; body length (excluding legs) ranges from 0.97 - 1.19 millimeters. (1)(2)
Voucher female habitus, epigynum:
Widespread in Canada, from British Columbia to Newfoundland, and also found across northern USA (published USA records seem to be mainly from the east, e.g. ME, MI, NY, WI, and SCAN(3) lists one specimen from CO).(2)(4)(5)
Primarily found in forest litter (both deciduous and coniferous), also under logs, in duff, and moss.(2)
Works Cited
1.Studies in American spiders: Miscellaneous genera of Erigoneae, Part II
S. C. Bishop & C. R. Crosby. 1938. Journal of the New York Entomological Society 46: 55-107.
2.Have you seen my mate? Descriptions of unknown sexes of some North American species of Linyphiidae and Theridiidae (Araneae)
Nadine Dupér[r]é, Pierre Paquin, & Donald J. Buckle. 2006. Journal of Arachnology 34: 142-158.
3.Southwest Collections of Arthropods Network (SCAN)
4.Checklist of the spiders (Araneae) of Canada and Alaska
Paquin, Buckle, Duperre, & Dondale. 2010. Zootaxa 2461: 1–170.
5.Contributions à la connaissance des Araignées (Araneae) d'Amérique du Nord. Fabreries, Supplément 10.
Pierre Paquin & Donald J. Buckle. 2001. Association des entomologistes amateurs du Québec inc. (AEAQ).