Cebrennus aethiopicus Simon 1880
Creators: name: Jäger, Peter
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Sparassidae
Cebrennus
Cebrennus aethiopicus

description: Cebrennus aethiopicus Simon, 1880
Figs 24–31, 55–62, 70–75, 82–86, 173
Cebrennus aethiopicus Simon, 1880: 334 (description of male; holotype male, Eritrea, Massaua, MNHN 1613-3274, examined). Fage 1921: 162, figs 1d–e (illustration of male); Jäger 2000: 176, figs 49–55 (illustration of male, description of female); Jäger and Kunz 2005: 169, figs 283–291 (illustration of male and female from A [Ain/Al/As?] Sefza [Sefra/ Safra?].
Material examined. SUDAN: Red Sea: 1 male (PJ 3474), open alkaline plain, Gowb, C. Dewhurst leg. March 2001 (RMCA 236151). ERITREA: Anseba: 1 female (PJ 3408), Gheleb, RII 12975 (SMF 9912975). Northern Red Sea: Holotype male (PJ 3441), Massaua, 1613-3274 (MNHN); 1 female (PJ 3473), Red Sea Coast, in sand on Red Sea, C. Dewhurst leg. 9 November 1996 (RMCA 236132). DJIBOUTI. 1 male (PJ 3442; + 1 immature), Djibouti, 1613-1944 (MNHN).
Diagnosis. Medium-sized Sparassinae, body length of males: 10.5–11.1, females: 12.7–17.5. Copulatory organ similar to those of C. wagae, C. castaneitarsis and C. flagellatus spec. nov. in having a very long embolus with distal loop as long as the tegulum or larger (Figs 24–31). Distinguished from C. flagellatus spec. nov. by the absence of an additional flagellum at the embolus kink. In males, the RTA in retrolateral view is as long as the tibia or slightly longer, i.e. the ratio RTA/tibia ranges from 1.00 to 1.16, which is intermediate between C. castaneitarsis and C. flagellatus spec. nov. on the one hand and C. wagae on the other hand. Moreover, males differ from those of the three other species by having the embolus arising in a 3 to 3.30 o’clock-position from tegulum, embolus base reaching the retrolateral margin of tegulum. Females (Figs 55–62): Epigynal field’s ratio width/length ranges from 1.46 to 1.58, i.e. generally wider than the other Cebrennus spp. Lateral epigynal ledges with their posterior ends closer to each other than anterior ends or as close as these. Males and females with 5 to 6 cheliceral posterior teeth (Figs 70–75).
Description. See Jäger (2000). Additional data of PJ 3474 as following (with data, if present, of holotype in parentheses): Male. PL 5.8 (6.2), PW 5.3 (5.0), AW 3.4 (3.6), OL 4.7 (4.9), OW 3.7 (3.3). Spination: Palp: 130, 0 0 0, 1000 [thin bristle]; legs: femur I–III 323, IV 322(3); patella I–IV 000; tibia I–IV 2024; metatarsus I–III 3034, IV 3036. Ventral metatarsi I–IV with scopula in distal half, without spines or bristles distally. Measurements leg I: 29.9 (8.6, 2.7, 7.7, 8.7, 2.2). Chelicerae with 2 anterior teeth and with 5 (6) posterior teeth. Margin of chelicerae close to fang base with 5 bristles (Figs 73, 75).
Colouration: pale yellowish brown, without distinct pattern, but chelicerae, dorsal prosoma and opisthosoma with indistinct markings; distal appendages slightly darker.
Female (n=2): PL 7.1–7.7, PW 5.6–6.5, AW 4.5–5.5, OL 8.3–10.4, OW 7.4–8.2; AME 0.45–0.56, ALE 0.35–0.47, PME 0.31–0.41, PLE 0.28–0.42, AME–AME 0.30–0.39, AME–ALE 0.32–0.39, PME–PME 0.62–0.67, PME–PLE 0.93–1.21, AME–PME 0.42–0.47, ALE–PLE 0.89–0.93, clypeus AME 0.24–0.31, clypeus ALE 0.29–0.38 (Figs 83, 85). Spination: Palp: 130, 0 0 0, 1000 (0001), 1000 (0002); legs: femur I–II 323, III 323(2), IV 322; patella I–IV 000; tibia I 202(1)4, II–IV 2024; metatarsus I 2024 (3034), II 2024 (2034, median prolateral missing), III 2024 (3034), IV 3036. Ventral metatarsi I–IV with sparse scopula in distal half, without spines or bristles distally. Measurements leg I: [n=2] 23.1–28.3 (6.6–7.8, 2.7–3.4, 5.5–7.0, 6.5–8.0, 1.8–2.1). Palpal claw with 8 to 9 teeth. Margin of chelicerae close to fang base with 3–5 bristles (Figs 70–72, 74).
Colouration: (pale) yellowish brown, without distinct pattern, dorsal opisthosoma with indistinct dots; chelicerae (light) reddish brown, distal appendages slightly darker.
Distribution. Sudan, Eritrea, Djibouti, Ethiopia [not mapped], Saudi Arabia (Fig. 173).
description: Published as part of Jäger, Peter, 2014, Cebrennus Simon, 1880 (Araneae: Sparassidae): a revisionary up-date with the description of four new species and an updated identification key for all species, pp. 319-356 in Zootaxa 3790 (2) on pages 330-332, DOI: 10.11646/zootaxa.3790.2.4, http://zenodo.org/record/29899