|Levi, H. W.|On the value of genitalic structure and coloration in separating species of widow spiders ('''Latrodectus''' sp.) (Arachnida : Araneae : Theridiidae)|Verh. naturwiss. Ver. Hamburg|26巻|195-200頁||1983年|||
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,"Levi, H. W.",On the value of genitalic structure and coloration in separating species of widow spiders (Latrodectus sp.) (Arachnida : Araneae : Theridiidae),Verh. naturwiss. Ver. Hamburg,26巻,195-200頁,,1983年,