Requested reference
Chamberlin, R. V. & Ivie, W. (1932). A review of the North American spiders of the genera Cybaeus and Cybaeina. Bulletin of the University of Utah 23(2): 1-43. 
-- Show included taxa
Chamberlin, R. V. & Ivie, W. (1932). A review of the North American spiders of the genera Cybaeus and Cybaeina. Bulletin of the University of Utah 23(2): 1-43. -- Show included taxa