Levi, Herbert Walter, 1921-2005-10-062005-10-061955http://hdl.handle.net/2246/493833 p. : ill. ; 24 cm.Includes bibliographical references (p. 33).3776286 bytesapplication/pdfen-USQL1 .A436 no.1718, 1955CoressaAchaearaneaCobweb weavers -- North AmericaSpiders -- North AmericaArachnida -- North AmericaThe spider genera Coressa and Achaearanea in America north of Mexico (Araneae, Theridiidae). American Museum novitates ; no. 1718text