A revision of the genus Coryssiphus Simon, 1903, with its transfer to Systariinae (Araneae: Miturgidae) Author Bosselaers, Jan text Zootaxa 2024 2024-02-20 5415 1 153 168 http://dx.doi.org/10.11646/zootaxa.5415.1.7 journal article 10.11646/zootaxa.5415.1.7 1175-5326 10692812 27930661-26F3-40F0-859B-C5287F0ABE8F Coryssiphus cinerascens Simon, 1903 Figs 1B , 2E–G , 5 , 6C–E , 8 Coryssiphus cinerascens Simon, 1903a: 32 ( holotype ♂: SOUTH AFRICA : “Cap! Prom. Bonae Spei!” (MNHN 18821); Dippenaar-Schoeman et al ., 2021: 9 , 4 figs. Coryssiphus unicolor Simon, 1903a: 32 ( holotype ♀ : SOUTH AFRICA : “Cap! Prom. Bonae Spei!” (MNHN 13003); Dippenaar-Schoeman et al ., 2021: 11 . syn. nov. Additional material examined. SOUTH AFRICA : Western Cape : 1♂, Cape Peninsula , Constantia , Vlakkenberg , fynbos near summit, 16 September–4 October 1992 , leg. B. Heydenrych ( RMCA 174990 ) ; 1♂, Same data as previous but 4–12 October 1992 , leg. Heydenrych ( RMCA 174995 ); 1♀ , Same data as previous but 19 October–8 November 1992 ( RMCA 177006 ); 1♀ , Cape Province , Houtbaai , Tierbos , in litter, December 1960 , leg. N. Leleup ( RMCA 131824 ) ; FIGURE 6. A, B. Coryssiphus praeustus , female RMCA 131898 (A), female RMCA 247653 (B, left), female RMCA 131872 (B, right). C–E. C. cinerascens , female RMCA 177006 (C, left), C. unicolor , holotype (C, right), male holotype (D), female RMCA 131824 (e). A. Vulva, dorsal; B, C. Epigynes. D. palp, ventral (left) and retrolateral (right). E. Vulva, dorsal. Scale bars: A, E: 100 µm; B, C: 250 µm; D: 0.5 mm. Abbreviations: ID, Insemination duct; Sss, Sickle-shaped sclerite; ST1, Spermatheca 1; ST2, Spermatheca 2 (“bursa”). Additional data on material only examined from photographs. SOUTH AFRICA : Western Cape : 2♀ , Cape Town , Kirstenbosch Botanical Gardens , 33°55’04’’S , 18°25’36’’E , 214 m a.s.l. , leaf litter in Afromontane forest , 11 December 2012 , leg. J.A. Neethling ( NCA 2013 /673); 1♂, Same locality 33°59.216’S , 18°25.742’E , 165 m a.s.l. , sifting litter, Afromontane forest , 4 October 2022 , leg. C. Haddad , D. Harms , R. Booysen & J. Neethling ( NMBA 18840 ); 1♀ , Cape Town , Western slope of Table Mountain , 6 November 1949 , leg. B. Malkin ( CAS 9033195 ); 3 imm. 2♀, Stellenbosch , Jonkershoek Nature Reserve , 33°59.584’S , 18°57.358’E , 405 m a.s.l. , sifting litter, Afromontane forest , 4 October 2022 , leg. C. Haddad , D. Harms , R. Booysen & J. Neethling ( NMBA 18876 ) . FIGURE 7. Coryssiphus praeustus , female RMCA 131898 (A, B, D, E), RMCA 131898a, b, c (C, top left, middle, right), RMCA 247653 (C, bottom left), RMCA 131872 (C, bottom middle), NCA 2011/886 (C, bottom right). A. Dorsal; B. ventral; C. Epigynes; D. Right chelicera, ventral; E. Vulva, dorsal. Scale bars: A, B: 1 mm; C–E: 250 µm. FIGURE 8. Coryssiphus cinerascens , female, C. unicolor holotype (A, B, D, E top, F), RMCA 177006 (C, E bottom right), RMCA 131824 (E bottom left, G). A. Habitus, dorsal; B, Habitus, ventral; C. Spinnerets, ventral; D. Same, caudal; E. Epigynes. F. Label; G. Vulva, dorsal. Scale bars: A, B: 2 mm; C–E: 250 µm; G: 100 µm. Diagnosis. Coryssiphus cinerascens is close to C. praeustus , but differs from it by the smaller body size, the slightly shorter, sturdier legs, especially the tibiae of legs and palps ( Tables 1 , 2 ), the shorter cymbium of the male palp ( Figs 5C, D , 6D ), the epigyne that has a trapezoidal instead of bell-shaped central depression ( Figs 6C , 8E ), and the ST2 that are oriented antero-laterally instead of almost longitudinally ( Figs 6E , 8G ). Description. Male ( holotype unless mentioned otherwise). Somatic morphology as described for the genus. Total l (n = 3) 3.2–3.3; carapace l 1.6, w 1.3 ; sternum l 0.9, w 0.9 . Fovea situated 1.1 from front, fovea l 0.3 ( Fig. 5A ). Eye arrangement: AER w 0.34 , PER w 0.47 , MOQ frontal end 0.20, posterior end 0.26, longitudinal l 0.24. Legs relatively short and sturdy ( Table 1 ). Leg spination as in Fig. 2E ; ventral side of ti I with 6 vsp, ti II with 5 vsp. Male palp with cylindrical ti, cy about twice as long as diameter of bulbus ( Table 2 , Figs 5C , 6D ). Leg measurements: fe pa ti mt ta Total I 1.47 0.66 1.60 1.18 0.71 5.62 II 1.24 0.58 1.24 0.92 0.60 4.58 III 0.97 0.39 0.79 0.87 0.58 3.60 IV 1.42 0.60 1.47 1.29 0.71 5.50 Female ( holotype of C. unicolor unless otherwise stated). Somatic morphology as described for the genus. Total l 4.7–5.2 (n = 3), carapace l 1.7, w 1.5 ; sternum l 1.0, w 0.9 . Fovea situated 1.1 from front, fovea l 0.3 ( Fig. 8A ). Eye arrangement: AER w 0.45 , PER w 0.55 , MOQ frontal end 0.21, posterior end 0.28, longitudinal l 0.26. Legs relatively short and sturdy ( Table 1 ). Leg spination as in Fig. 2F, G ; ventral side of ti I with 6–7 vsp, ti II with 6 vsp. Epigyne with trapezoidal central depression and sclerotised lateral rims that diverge over their entire length ( Figs 6C , 8E ). Long axis of ST2 oriented in antero-lateral direction ( Figs 6E , 8G ). Leg measurements: fe pa ti mt ta Total I 1.53 0.71 1.60 1.05 0.74 5.62 II 1.39 0.63 1.37 0.92 0.68 5.00 III 1.26 0.53 1.05 0.95 0.63 4.42 IV 1.71 0.66 1.66 1.47 0.82 6.31 Distribution. At present only known from the Cape Peninsula and Stellenbosch, South Africa , but most probably present within a radius of at least 60 km from the latter (Haddad, pers. comm.).