A. Coddington, S. F. Larcher & J. C. Cokendolpher (1990): "The Systematic Status of Arachnida, Exclusive of Acari, in North America North of Mexico.
A. Coddington, S. F. Larcher & J. C. Cokendolpher (1990): "The Systematic Status of Arachnida, Exclusive of Acari, in North America North of Mexico.