Requested reference
Chamberlin, R. V. (1920d). A new American Amaurobius (Arachnida, Araneina). Entomological News 31: 293. 
-- Show included taxa
Chamberlin, R. V. (1920d). A new American Amaurobius (Arachnida, Araneina). Entomological News 31: 293. -- Show included taxa