Requested reference
Levi, H. W. (1971b). The ravilla group of the orbweaver genus Eriophora in North America (Araneae: Araneidae). Psyche, Cambridge 77(3, 1970): 280-302. doi:10.1155/1970/69275 
-- Show included taxa
Levi, H. W. (1971b). The ravilla group of the orbweaver genus Eriophora in North America (Araneae: Araneidae). Psyche, Cambridge 77(3, 1970): 280-302. doi:10.1155/1970/69275 -- Show included taxa