Cybaeus (Araneae: Cybaeidae) in the Nearctic: the devius and tardatus species groups of the Californian clade Author Bennett, Robb Department of Entomology, Natural History Section, Royal British Columbia Museum, 675 Belleville Street, Victoria, British Columbia, Canada V 8 W 9 W 2. Author Copley, Claudia 0000-0002-8184-5819 Department of Entomology, Natural History Section, Royal British Columbia Museum, 675 Belleville Street, Victoria, British Columbia, Canada V 8 W 9 W 2. & ccopley @ royalbcmuseum. bc. ca; https: // orcid. org / 0000 - 0002 - 8184 - 5819 ccopley@royalbcmuseum.bc.ca Author Copley, Darren 0000-0002-1944-4272 Department of Entomology, Natural History Section, Royal British Columbia Museum, 675 Belleville Street, Victoria, British Columbia, Canada V 8 W 9 W 2. & dcopley @ royalbcmuseum. bc. ca; https: // orcid. org / 0000 - 0002 - 1944 - 4272 dcopley@royalbcmuseum.bc.ca text Zootaxa 2021 2021-08-27 5026 4 451 479 journal article 10.11646/zootaxa.5026.4.1 1175-5326 5300630 511C28F6-07E4-412C-B83E-91D2CAC5AA27 Key to the species of the Cybaeus devius group (males of C. devius and C. echo unknown) 1. Males.............................................................................................. 2 - Females............................................................................................. 4 2(1). Distal arm of tegular apophysis narrow basally, length more than twice width ( Fig. 24 ). Embolus slightly ribbon-like, broadened. Vicinity of Kings Canyon National Park ( Tulare County , California )........................ wilsonia Bennett spec. nov. - Distal arm much broader basally, length less than twice width ( Figs 3 , 6 ). Embolus narrow. Tulare or Amador Counties, California ........................................................................................... 3 3(2). Length of patellar apophysis about 2/3 width of patella, distal edge straight ( Figs 5 , 27 ). Proximal arm of tegular apophysis with small basal projection and simple, acuminate tip ( Figs 6 , 30 ). Central Sierra Nevada ( Amador County , California )..................................................................................... bryoncavus Bennett spec. nov . - Length of patellar apophysis about 1/2 width of patella, distal edge concave ( Figs 1–2 , 26 ). Proximal arm of tegular apophysis lacking a basal projection and with bluntly hooked tip ( Figs 3 , 29 ). Southern Sierra Nevada ( Tulare County , California )................................................................................... bilectus Bennett spec. nov. 4(1). Basal section of copulatory ducts very lightly sclerotized, enveloping heavily sclerotized apical section ( Figs 15–16, 18–19 , 21–22 ). Spermathecal stalks very short.................................................................... 5 - Basal and apical sections of copulatory ducts undifferentiated with similar levels of sclerotization ( Figs 9–10, 12–13 ). Stalks much longer, looped once around copulatory ducts........................................................... 7 5(4). Basal section of copulatory ducts looped twice around apical section ( Figs 18–19 ). Vicinity of Kings Canyon National Park ( Tulare County , California )........................................................ wilsonia Bennett spec. nov. - Basal section looped three times around apical section ( Figs 15–16 , 21–22 ). Lake Tahoe area or south central Sierra Nevada, California ........................................................................................... 6 6(5). Basal section of copulatory ducts of greater area than the relatively small spermathecal bases and slightly obscuring the bases in ventral view ( Fig. 15 ). South central Sierra Nevada ( Madera County , California )............. devius Chamberlin & Ivie - Basal sections of copulatory ducts of lesser area than the relatively large bases and not obscuring the bases in ventral view ( Fig. 21 ). Lake Tahoe area ( El Dorado County , California )....................................... echo Bennett spec. nov . 7(4). From atrium, copulatory ducts proceed anteriorly along midline of vulva ( Fig. 12 ). Central Sierra Nevada ( Amador County , California )................................................................... bryoncavus Bennett spec. nov . - From atrium copulatory ducts proceed anteriorly across medial sections of copulatory ducts ( Fig. 9 ). Southern Sierra Nevada ( Tulare County , California )........................................................ bilectus Bennett spec. nov.