Abstract
North American species of the genus Cybaeus L. Koch (Araneae: RTA clade: Cybaeidae) are woodland spiders classified in Holarctic and Californian clades. Here, in the fifth and final paper in a series reviewing the six Californian clade species groups, we present eight species. Five species comprise the septatus group: Cybaeus chauliodous Bennett, C. lockeae Bennett spec. nov., C. septatus Chamberlin Ivie, C. somesbar Bennett, and C. viator Bennett spec. nov. The male of C. lockeae spec. nov. is unknown; the male of C. somesbar is newly described. As well, we recognize and review three Californian clade species (C. cribelloides Chamberlin Ivie, C. gidneyi Bennett, and C. irreverens Bennett spec. nov.) that we have been unable to place confidently in any of the six species groups. Descriptions, illustrations, distribution maps, and (for the members of the septatus group) an identification key are provided. Finally, we summarize the taxonomic status of all described North American species of Cybaeus and highlight some conservation concerns.
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