Published December 31, 2010 | Version v1
Taxonomic treatment Open

Afroceto porrecta Lyle & Haddad 2010, sp. n.

Description

Afroceto porrecta sp. n.

Figs 18, 102–104

Etymology: From Latin porrecta (stretched out, extended or long); refers to the very long embolus and cymbium of the male.

Diagnosis: This species can be recognised by the long, slender embolus that extends retrolaterally along the elongated, slender cymbium (Fig. 103). The palpal tibia has two distinctly separate retrolateral apophyses, of which the dorsal apophysis is larger and more sharply pointed (Fig. 104). Female unknown.

Description (only the type specimen was measured since the other specimen examined was severely damaged):

Male.

Measurements: CL 2.42, CW 1.92, AL 2.58, AW 1.62, TL 5.00, FL 0.38, SL 1.37, SW 1.20, AME–AME 0.01, AME–ALE 0.06,ALE–ALE 0.45, PME–PME 0.18, PME–PLE 0.16, PLE–PLE 0.71. Length of leg segments (sequence from femur to tarsus, and total): I 2.35+1.00+1.94+1.63+1.08=8.00; II 2.08+0.90+1.67+1.45+0.92=7.02; III 1.57+ 0.73+1.06+1.37+0.53=5.26; IV 2.33+0.86+1.92+2.24+0.75=8.10.

Carapace reddish brown (Fig. 19); first third with gradual rise to highest point of carapace, gradual decline of carapace till last quarter, last quarter with steep decline; surface smooth, covered in fine setae; fovea long, distinct, at two thirds CL. Ocular region reddish brown with black rings around eyes; AER recurved, AME slightly larger than ALE; clypeus height slightly more than AME diameter; AME separated by distance equal to 0.7 their diameter; AME separated from ALE by 0.29 AME diameter; PER procurved, PLE and PME are subequal in size; PME separated by 1.5 PME diameter; PME separated from PLE by slightly less than1.5 PME diameter. Chelicerae brown, slightly darker towards fang base; anterior surface with scattered black setae; three promarginal teeth, median tooth largest, proximal and distal tooth equal in size; two retromarginal tooth, largest situated distally. Sternum brown, border light brown; surface with scattered long setae. Abdomen pale grey; abdomen broader anteriorly, tapering posteriorly; brown scutum extends two thirds dorsum length, dark brown median line extending to half abdomen length; surface smooth with short, fine setae throughout; venter cream. Legs I to IV uniform pale yellow with incomplete band markings; anterior legs more robust than posteriors; legs with dense scopulae ventrally on metatarsi and tarsi; remaining segments covered in scattered setae; leg spines and cusps present. Leg spination: femora: I pl 1, II pl 1, III pl 1, IV pl 1; patellae spineless; tibiae: I plv 7 rlv 2 cusps, II plv 5 rlv 5 cusps, III pl 1 plv 2 rl 1 rlv 2 vt 2, IV pl 2 plv 3 rl 1 rlv 2 vt 1; metatarsi: I plv 15 rlv 9 cusps, II plv 11 rlv 4 vt 2 cusps, III pl 1 plv 2 rl 1 rlv 1, IV pl 2 plv 2 rl 1 rlv 1; tarsi: I plv 6 rlv 3 cusps, II plv 2 rlv 1 cusps (Fig. 112). Palp yellow, elongated slender embolus with narrow point (Fig. 103), curving retrolaterally on narrow, elongated cymbium; two retrolateral tibial apophysis, dorsal apophyses small, rounded, posterior apophyses large sharply pointed (Fig. 104).

Holotype: ♂ SOUTH AFRICA: Western Cape: “Rosendal” Farm, near Prince Albert, 33°16.492'S: 22°14.461'E, 24–27.ix.2008, D. van Rensburg, R. Lyle, R. Fourie, J. Saaiman, R. du Preez & V. Swart, pitfall traps, southern slope (NCA, 2008/2895).

Other material examined: SOUTH AFRICA: Eastern Cape: 1♂ Jansenville District, 28 km NWW of Jansenville, “Suurhaak” Farm, Trap 18­7 (NCA, 2008/2896).

Distribution:This species is only known from single localities in the Western and Eastern Cape provinces, South Africa (Fig. 105).

Notes

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 363-365, DOI: 10.5733/afin.051.0206, http://zenodo.org/record/7913561

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Linked records

Additional details

Biodiversity

Collection code
NCA
Event date
2008-09-24
Family
Trachelidae
Genus
Afroceto
Kingdom
Animalia
Order
Araneae
Phylum
Arthropoda
Scientific name authorship
Lyle & Haddad
Species
porrecta
Taxonomic status
sp. nov.
Taxon rank
species
Type status
holotype
Verbatim event date
2008-09-24/27
Taxonomic concept label
Afroceto porrecta Lyle & Haddad, 2010