Purcelliana kamaseb, Rodrigues & Rheims, 2020

Rodrigues, Bruno V. B. & Rheims, Cristina A., 2020, An overview of the African genera of Prodidominae spiders: descriptions and remarks (Araneae: Gnaphosidae), Zootaxa 4799 (1), pp. 1-80 : 38-44

Purcelliana kamaseb sp. nov.

Figs 26 A–C, 27A–F, 28A–F, 29A–F, 30A–F, 32A–G

Type material. Male holotype from Namibia, Kamaseb, Etosha National Park, 19°04’S 16°41’E, 26 March– 4 May 1988, E. Griffin leg. , deposited in SMN 41144. Paratypes: 2 males with same data as holotype; 2 females from same locality as holotype, 8 August– 14 September 1987, E. Griffin leg., ( SMN 40697) .

Etymology. The specific name refers to the type locality, noun in apposition.

Diagnosis. Purcelliana kamaseb sp. nov. resembles P. khabus sp. nov. in having the carapace reddish-brown and strongly rugose ( Figs 26A, B ), and by the male palp with the embolus curved retrolaterally ( Figs 32B , 33B ). The males are distinguished by the palps with vRTA pointed in ventral view and truncate in retrolateral view (rounded in P. khabus ) and by the dRTA bent ventrally (bent dorsally in P. khabus ) ( Figs 32B, D ); females are distinguished by the epigyne with diverging V-shaped copulatory openings (converging in P. khabus ) and by the posterior-median depression with longitudinal grooves (absent in P. khabus ) ( Figs 30E , 32E ). Both males and females are markedly larger that those of P. khabus .

Description. Male (SMN 41144). Legs orange and abdomen pale yellow ( Figs 26A, B ). Total length: 3.30. Carapace 1.31 long, 1.43 wide; Abdomen 1.90 long, 1.15 wide; Sternum 0.96 long, 0.80 wide; Spinnerets: ALS 0.08 long, 0.10 wide. Eye diameters: AME 0.09, ALE 0.10, PME 0.10, PLE 0.13; interdistances: AME–AME 0.06, PME–PME 0.08. Chelicerae 0.26 long. Leg measurements: I: 5.55 (1.44, 0.97, 1.25, 1.03, 0.86); II: 3.86 (1.08, 0.61, 0.86, 0.72, 0.59); III: 3.28 (0.98, 0.47, 0.63, 0.66, 0.55); IV: 4.97 (1.39, 0.75, 1.09, 0.98, 0.75). Palp: conductor distally widened ( Figs 32 A–D).

Female (SMN 49697). Total length: 3.52. Carapace 1.50 long, 1.47 wide; Abdomen 2.15 long, 1.15 wide; Sternum 1.10 long, 0.86 wide; Spinnerets: ALS 0.16 long, 0.15 wide. Eye diameters: AME 0.09, ALE 0.10, PME 0.09, PLE 0.11; interdistances:AME–AME 0.06, PME–PME 0.08. Chelicerae 0.60 long. Leg measurements: I: 6.03 (1.64, 1.08, 1.34, 1.06, 0.91); II: 4.44 (1.25, 0.73, 0.92, 0.83, 0.70); III: 3.84 (1.09, 0.64, 0.78, 0.80, 0.53); IV: 5.58 (1.47, 0.98, 1.28, 1.00, 0.84).

Variation. Total length (4 males): 2.40–3.30; (3 females): 3.28–3.76.

Distribution. Etosha National Park, Namibia ( Fig. 34 ).

Other material examined. Namibia: Karossfontein , Etosha National Park, 19°21’S 14°31’E, 2 males, 13 May–16 June 1986, E. Griffin leg. ( SMN 39427 ) ; Dorstland , Etosha National Park, 18°46’S 14°44’E, 2 females, 4 August–13 September 1987, E. Griffin leg. ( SMN 40596 ) .

Figures

FIGURE 26. Purcelliana kamaseb sp. nov., female: (A) habitus, dorsal view; (B) habitus, lateral view; (C) abdomen, dorsal view, detail of clavate setae. P. cederbergensis sp. nov., male: (D) chelicerae, frontal view. P. problematica, male: (E) habitus, dorsal view; (F) sternum and endites; (G) spinnerets, lateral view; (H) spinnerets, ventral view.

FIGURE 30. Purcelliana etosha sp. nov., male: (A) palp, ventral view; (B) same, apical view; (C) same, retrolateral view; (D) same, ventral view, detail bulb. Female: (E) epigyne, ventral view; (F) vulva, dorsal view. C—conductor; CD—copulatory duct; CO—copulatory opening; dRTA—dorsal retrolateral tibial apophysis; E—embolus; FD—fertilization duct; LETe—laminar extension of tegulum; PMD—posterior median depression; vRTA—ventral retrolateral tibial apophysis.

FIGURE 32. Purcelliana kamaseb sp. nov., male palp: (A) apical view, bulb rotated (prolateral view); (B) ventral view, bulb rotated; (C) prolatero-basal view, bulb rotated (retrolateral view); (D) retrolateral view, bulb rotated (apical view). Female: (E) epigyne, ventral view, arrow to triangular posterior depression; (F) vulva, dorsal view; (G) vulva, schematic course of internal duct system. C—conductor; CD—copulatory duct; CO—copulatory opening; dRTA—dorsal retrolateral tibial apophysis; Eembolus; FD—fertilization duct; LETe—laminar extension of tegulum; PMD—posterior median depression; vRTA—ventral retrolateral tibial apophysis. Scale bars: 0.25 mm.

FIGURE 33. Purcelliana khabus sp. nov., male palp: (A) apical view, bulb rotated (prolateral view); (B) ventro-basal view, bulb rotated (ventral view); (C) retrolateral view, bulb rotated (apical view). Female: (D) epigyne, ventral view, arrow to triangular posterior depression; (E) vulva, dorsal view; (F) vulva, schematic course of internal duct system. C—conductor; CDcopulatory duct; CO—copulatory opening; dRTA—dorsal retrolateral tibial apophysis; E—embolus; FD—fertilization duct; LETe—laminar extension of tegulum; PMD—posterior median depression; vRTA—ventral retrolateral tibial apophysis. Scale bars: 0.25 mm.

FIGURE 34. Known distribution records of species of Purcelliana from Namibia and South Africa.