Yoshida, H. (2005). Additional records of Japanese species of the genus Robertus (Araneae: Theridiidae), with removal of a species as a junior synonym of Leptorhoptrum robustum (Linyphiidae). Acta Arachnologica 53(2, 2004): 149-150. doi:10.2476/asjaa.53.149 -- Show included taxa