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Species Sergiolus capulatus

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A Revision of the Spider Genus Sergiolus
By Platnick, Norman I.; Shadab, Mohammad U.
Am. Mus. Novit. 2717: 1-48., 1981
Link to Full Text PDF -

A revision of the spider genus Gnaphosa (Araneae, Gnaphosidae) in America
By Platnick, N. I. & Shadab, M. U.
Bulletin of the American Museum of Natural History 155: 1-66, 1975

The Gnaphosidae of Arkansas
By Heiss, J. S. & Allen, R. T.
The Gnaphosidae of Arkansas. Bulletin, Agricultural Experiment Station, University of Arkansas 885: 1-67, 1986

A Revision of the North American Spider Genera Nodocion, Litopyllus, and Synaphosus (Araneae, Gnaphosidae)
By Platnick & Shadab
The American Museum of Natural History, 1980
American Museum Novitates, number 2691
Available online as a free download here:

A revision of the spider genera Haplodrassus and Orodrassus (Araneae, Gnaphosidae) in North America
By Norman Platnick & Mohammad Shadab
American Museum Novitates 2583: 1-40, 1975

A revision of the spider genera Trachyzelotes and Urozelotes (Araneae, Gnaphosidae)
By Norman Platnick & John Murphy
American Museum Novitates 2792: 1-30, 1984

A revision of the Holarctic spider genus Callilepis (Araneae, Gnaphosidae)
By Norman Platnick
American Museum Novitates 2573:1-32, 1975
Free PDF available online from here:

Insects and Arachnids of Canada Part 19: The ground spiders of Canada and Alaska : Araneae: Gnaphosidae
By Norman Platnick & Charles Dondale
Research Branch, Agriculture Canada, Publ. 1875: 1-297, 1992
Available online as a free download here:

(The monographs are also now available as print-on-demand books at All the titles can be found using a search for “Agriculture Canada” or by individual title.)

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