Jocquestus, a new genus of trachelid sac spiders from the Afrotropical Region (Arachnida: Araneae) Author Lyle, Robin Author Haddad, Charles R. text Zootaxa 2018 2018-09-05 4471 2 309 333 journal article 29478 10.11646/zootaxa.4471.2.4 05d2a4ba-f50f-4645-bbb3-05cd83dcbd7e 1175-5326 1439724 691AD8B9-27BB-40E6-A3D8-C3D17DA38B0B Jocquestus harrisi sp. nov. urn:lsid:zoobank.org:act:4F864F6A-8177-478E-BA13-F84566471A96 Figs 12 , 50, 51 Etymology. This species is named after Rupert Harris, who collected the holotype . Diagnosis. A distinctive species that can be recognised by a combination of the recurved, C-shaped epigynal ridges and the narrow ST II ( Fig. 50 ). All other species in the genus have broad ST II and obliquely aligned epigynal ridges, with the exception of J. incurvus sp. nov. , which also has recurved epigynal ridges ( Fig. 55 ). Male unknown. Female ( holotype , Westphalia, NCA 95/165) . Measurements: CL 1.40, CW 1.23, AL 1.88, AW 1.40, TL 3.28, FL 0.08, SL 0.83, SW 0.73, AME–AME 0.05, AME–ALE 0.05, ALE–ALE 0.30, PME–PME 0.10, PME– PLE 0.10, PLE–PLE 0.45. Length of leg segments (sequence from femur to tarsus, and total): I 1.00 + 0.45 + 0.55 + 0.58 + 0.40 = 2.98; II 0.90 + 0.40 + 0.65 + 0.58 + 0.35 = 2.88; III 0.65 + 0.38 + 0.40 + 0.50 + 0.25 = 2.18; IV 0.85 + 0.38 + 0.65 + 0.50 + 0.23 = 2.61. Carapace reddish-brown ( Fig. 12 ); surface finely granulate, almost smooth, covered with short fine setae; fovea distinct, at two thirds CL; ocular region brown; clypeus height approximately equal to AME diameter; ALE slightly larger than AME; AME separated by distance equal to 0.7 times their diameter; AME separated from ALE by distance equal to 0.4 AME diameter; PLE slightly larger than PME; PME separated by distance equal to twice their diameter; PME separated from PLE by distance equal to twice PME diameter. Chelicerae reddish-brown, anterior surface covered with scattered long fine setae; one distal promarginal tooth present; two retromarginal teeth, distal tooth largest. Sternum brown, darker towards borders; surface smooth, covered with scattered short fine setae. Abdomen pale yellow with grey mottling dorsally; two pairs of pale brown sigilla, one pair anterior to midpoint, second pair darker, posterior to midpoint ( Fig. 12 ). Legs I to IV uniform pale brown, anterior legs darker than posteriors; leg I with granulate texture, other legs smooth; regular leg spines, cusps absent. Epigynal ridges Cshaped, recurved, with lateral CO; ST II narrow, twisted, close to midline of epigyne anteriorly, with narrow ducts leading to oval ST I near epigastric fold ( Figs 50, 51 ). Type material. Holotype : ♀ : SOUTH AFRICA : Limpopo : Westphalia, 23°18'S , 29°10'E , leg. R. Harris, 27.V.1983 (NCA 95/165). Distribution. Only known from the type locality ( Fig. 70 ). Habitat and biology. Collected from the savanna biome of northern South Africa.