Afroceto bisulca Lyle & Haddad 2010, sp. n.
Creators: name: Lyle, Robin
name: Haddad, Charles R.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Trachelidae
Afroceto
Afroceto bisulca

description: Afroceto bisulca sp. n.   Figs 5, 51–53  
 Etymology: From Latin bis (double) and sulcus (a furrow); refers to the split in the retrolateral tibial apophysis, which forms two subtriangular excrescences.   
Diagnosis: The male can easily be recognised by the broad tongue­like embolus and the retrolateral tibial apophysis split into two excrescences, of which the most dorsally situated one has a sharper point (Figs 52, 53). Female unknown.  
Description:  
 Male.   
Measurements: CL 2.40, CW 1.80, AL 2.20, AW 1.45, TL 4.60, FL 0.13, SL 1.23, SW 1.30, AME–AME 0.05, AME–ALE 0.03, ALE–ALE 0.28, PME–PME 0.13, PME–PLE 0.15, PLE–PLE 0.63. Length of leg segments (sequence from femur to tarsus, and total): I 2.10+0.93+1.70+1.23+0.98=6.94; II 1.78+0.78+1.38+1.28+0.88=6.10; III 2.05+0.65+ 0.78+1.13+0.50=5.11; IV 1.75+0.75+1.60+1.65+0.53=6.28.  
 Carapace pale yellow, orange posteriorly (Fig. 5); first third of carapace evenly high, second third with gradual decline and last third with relatively steep decline; surface covered in fine, short setae; fovea short, distinct, at two thirds CL. Ocular region orange with light rings around eyes; AER slightly recurved, AME larger than ALE; clypeus height equal to AME diameter; AME separated by distance equal to 0.8 their diameter; AME separated from ALE by 0.2 AME diameter; PER slightly recurved, PLE slightly larger than PME; PME separated by distance equal to their diameter; PME separated from PLE by 0.8 PME diameter. Chelicerae orange; long, pale orange setae scattered on anterior surface; fangs light orange to pale yellow near tip; two promarginal teeth, distal tooth largest; two retromarginal teeth, distal tooth largest. Sternum pale yellow, slightly darker yellow towards border; fine, pale setae scattered on surface. Abdomen very pale yellow dorsally, without distinctive markings or sigilla; abdomen broader anteriorly, tapering posteriorly; venter pale yellow. Legs I to IV uniform pale yellow; leg spines and cusps present. Leg spination: femora: I pl 1; patellae spineless; tibiae: I plv 4 rlv 1 cusps, II plv 2 cusps, III pl 2 rl 1 vt 1; metatarsi: I plv 10 rlv 2 vt 1 cusps, II plv 7 rlv 5 cusps, III pl 1 rl 1; tarsi: I plv 1 cusp, II plv 1 rlv 1 cusps (Fig. 51). Palp yellow; embolus broad, tongue­like (Fig. 52); retrolateral tibial apophysis prominent, with short, well­rounded ventral excrescence and sharply pointed dorsal excrescence (Fig. 53).   
 Holotype: ♂ SOUTH AFRICA: Western Cape: Cape Peninsula, Bergvliet, near Diep Rivier [34.04°S: 18.47°E], x.1898, F. Purcell (SAMC, 6238).   
Distribution: Known only from the type locality (Fig. 55).
description: Published as part of Lyle, Robin & Haddad, Charles R., 2010, A revision of the tracheline sac spider genus Cetonana Strand, 1929 in the Afrotropical Region, with descriptions of two new genera (Araneae Corinnidae), pp. 321 in African Invertebrates 51 (2) on pages 343-344, DOI: 10.5733/afin.051.0206, http://zenodo.org/record/7913561