Acanthoctenus spinipes Keyserling, 1877

Arizala, Stephany, Labarque, Facundo Martín & Polotow, Daniele, 2021, Revision of the Neotropical spider genus Acanthoctenus (Araneae: Ctenidae Acanthocteninae), Zootaxa 4920 (1), pp. 1-55 : 17-21

publication ID

https://doi.org/ 10.11646/zootaxa.4920.1.1

publication LSID

lsid:zoobank.org:pub:89E38EAD-A8D2-4ED9-A7D0-8C388A785E61

DOI

https://doi.org/10.5281/zenodo.4497853

persistent identifier

https://treatment.plazi.org/id/F73887DC-E933-9676-43F7-FD69FD4DA8B3

treatment provided by

Plazi

scientific name

Acanthoctenus spinipes Keyserling, 1877
status

 

Acanthoctenus spinipes Keyserling, 1877 View in CoL

Figs 10B View FIGURE 10 , 15–18 View FIGURE 15 View FIGURE 16 View FIGURE 17 View FIGURE 18

Acanthoctenus spinipes Keyserling, 1877: 695 View in CoL , plate 8, fig. 61 (female holotype from Colombia, Santa Fé de Bogota, [4º35’39.5”N, 74º01’56.9”W] deposited in NHM, examined).—F.O. Pickard-Cambridge 1897: 103, plate 4, fig. 3d.— Polotow & Brescovit 2008: 706.— World Spider Catalog 2020.

Other material examined. COLOMBIA. Cundinamarca: Fusagasugá ( Río Cuja ) [4º17’30.3”N, 74º25’02.4”W], 1 female, C. Hernández coll. (ICN-Ar73); GoogleMaps Anolaima [4º45’42.2”N, 74º27’50.4”W], 1 male, 1 immature, G. Botero coll. (ICN-Ar4667) GoogleMaps .

Diagnosis. Males of Acanthoctenus spinipes ( Figs 15 View FIGURE 15 D–E, 16A–B) resemble those of A. lamarrei sp. nov. ( Figs 42 View FIGURE 42 D–E, 43A–B) by the median apophysis massive, the apex at least five times wider than the base, and RTA elongated, longer than wide. It can be distinguished by the embolus elongated, the base slightly swollen and starting at 9 o’clock and the apex ending at 2 o’clock, and RTA distally straight and round. A. lamarrei sp. nov. presents a shorter embolus, the apex ending at 12 o’clock, the base swollen at least four times the apex width, and RTA distally curved. Females of Acanthoctenus spinipes ( Figs 16 View FIGURE 16 C–D, 17C, 18A–B) resemble those of A. chickeringi sp. nov. ( Figs 39 View FIGURE 39 C–D, 40D, 41A–B) by the atrium massive, subquadrangular, as wide as long. It can be distinguished by the anterior and lateral borders of the atrium strongly sclerotized, the median sector not extending into the atrium, and the copulatory ducts S-shaped, not bended apically. A. chickeringi sp. nov. presents slightly sclerotized lateral borders on the atrium, an extension of the median sector into the atrium, and apically bended copulatory ducts.

Description. Male (ICN-Ar4667). Total length 14.73. Carapace 6.75 long and 5.50 wide. Clypeus 0.30 high. Eye diameters: AME 0.38, ALE 0.24, PME 0.39, PLE 0.44. Leg measurements: I: femur 8.80/ patella 3.28/ tibia 9.28/ metatarsus 8.37/ tarsus 2.42/ total 32.15; II: 7.71/ 2.84/ 7.46/ 7.22/ 2.18/ 27.11; III: 6.11/ 2.38/ 5.34/ 6.33/ 2.09/ 22.25; IV: 7.62/ 2.64/ 7.24/ 9.27/ 2.65/ 29.42. Leg formula 1423. Leg spination: tibia I and II v-2-2-2-2-2-2-2-2-2, r-1-1-0-1-1-1, p-1-0-1-1, III and IV v-2-2-2, r-1-0-1-1, p-0-1-1; metatarsus I and II v-2-2-2-2-2, r-1-0-1-1, p-1-1-0- 1; III and IV v-2-2-2, r-1-1-1, p-1-1-0-1. Palp ( Figs 15 View FIGURE 15 D–E, 16A–B): tibia shorter than cymbium, slightly curved; RTA with round tip; cymbium elongated and with retrobasal projection; embolus elongated, cylindrical, and bent; conductor hyaline and following the tip of embolus; median apophysis laminar, spatula-shaped, narrow at the base and wider at the apex, with an apical hook.

Female (holotype NHM). Total length 11.00. Carapace 5.10 long and 3.90 wide. Clypeus 0.14 high. Eye diameters: AME 0.20, ALE 0.14, PME 0.28, PLE 0.23. Leg measurements: I: femur 3.20/ patella 1.60/ tibia 2.90/ metatarsus 2.30/ tarsus 1.00/ total 11.00; II: 3.00/ 1.50/ 2.40/ 2.20/ 1.00/ 10.10; III: 2.60/ 1.20/ 2.10/ 2.40/ 1.10/ 9.40; IV: 3.50/ 1.40/ 3.20/ 4.00/ 1.40/ 13.50. Leg formula 4123. Leg spination: tibia I and II v-2-2-2-2-2, r1-1-0, p-0-1-0, III and IV v-2-2-2, r-1-1, p-1-1; metatarsus I, II and III v-2-2-2, r-1-1-1, p-1-1-1, IV v1-1-1-1-1-2, r1-1-1, p1-1-1. Epigynum ( Figs 16 View FIGURE 16 C–D, 17C, 18A–B): median sector subpentagonal, wide anteriorly, not extending into the atrium and projected posteriorly; anterior border of the lateral sectors straight forming approximately a 70° angle with the median sector longitudinal axis; subquadrangular atrium; copulatory ducts curved, S-shaped; spermathecae head quote-shaped, with apical glandular openings, spermathecae base curled; fertilization ducts tubular, slanting outwards.

Variation. Two females: total body length 10.50–16.20; carapace length 4.92–6.20.

Distribution. Central Colombia ( Fig. 10B View FIGURE 10 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Ctenidae

Genus

Acanthoctenus

Loc

Acanthoctenus spinipes Keyserling, 1877

Arizala, Stephany, Labarque, Facundo Martín & Polotow, Daniele 2021
2021
Loc

Acanthoctenus spinipes

Polotow, D. & Brescovit, A. D. 2008: 706
Pickard-Cambridge, F. O. 1897: 103
Keyserling, E. G. 1877: 695
1877
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