Bulboctenus kayapo Pereira & Labarque & Polotow 2020, sp. nov.
Creators: name: Pereira, Maria Paula
name: Labarque, Facundo
name: Polotow, Daniele
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Ctenidae
Bulboctenus
Bulboctenus kayapo

description: Bulboctenus kayapo sp. nov.
Figures 1–10, 15, 19
Type material. Male holotype from Campo de Provas Brigadeiro Velloso (-9.37333, -55.01944), Serra do Cachimbo, Novo Progresso, Pará, Brazil, 12.IX.2003, D.D. Guimar „es coll., deposited in MPEG (ARA) 36742. Three males and five females paratypes, same data as holotype, A.B. Bonaldo coll., deposited in MPEG (ARA) 001723.
Etymology. The species name is a noun in apposition that honors the Kayapó indigenous people from the state of Pará. The term “Kayapó” is used by neighboring tribes rather than the Kayapó people themselves, and it means “those who look like monkeys”.
Diagnosis. Males of Bulboctenus kayapo sp. nov. are distinguished from those of the other species of the genus by the apical projection of the MA rounded and smooth, slightly differentiated from the rest of the MA (Figs 10 A–C, 15A–C), by the RTA wider than long (shorter), apically rounded and by the RCP swollen, well-developed (ventral view, Fig. 12A), while B. itunaitata sp. nov. and B. munduruku sp. nov. present smooth RCP, enlarged RTA and well differentiated apical projections of the MA (Figs 12 A–C, 14A–C, 16A–C, 17A–C). Females of Bulboctenus kayapo sp. nov. are distinguished from those of the other species of the genus by the lateral margins of the MS strongly excavated anteriorly, next to the copulatory openings (Figs 10D, 15D) and by the copulatory ducts touching anteriorly (Fig. 10E), while B. itunaitata sp. nov. and B. munduruku sp. nov. present separated copulatory ducts and less excavated lateral margins of the MS (Figs 12 D–E, 14D–E, 16D–E, 17D–E).
Description. Male (MPEG(ARA)001712). Total length 6.67 (Fig. 9A). Carapace 3.51 long, 2.81 wide. Clypeus 0.29 high. Eye diameters: AME 0.19, ALE 0.11, PME 0.27, PLE 0.28. Leg measurements: I: femur 2.78 / patella 1.26 / tibia 2.78 / metatarsus 2.38 / tarsus 1.10 / total 10.3; II: 2.74 / 1.30 / 2.62 / 2.33 / 1.0 / 9.99; III: 2.58 / 1.17 / 2.30 / 2.45 / 1.0 / 9.5; IV: 3.22 / 1.25 / 2.92 / 3.89 / 1.35 / 12.63. Leg formula 4123. Leg spination: tibia I v2-2-2-2-2, r0, p1, II v2-2-2-2-2, r1, p1, III–IV v1-1-1-1 -2, r1-1, p1-1; metatarsus I v2-2-2, r0, p1, II v2-2-2, r1, p1, III v2-2-2, r1-1, p1-1, IV v1-1-1-1-2, r1 -1, p1-1. Palp (Figs 1 A–C, 10A–C, 15A–C): wide embolus, with rectangular base and rounded apex; median apophysis excavated laterally and with a short and rounded apex; conductor with narrow base and large apex, not covering the tip of the embolus.
Female (MPEG(ARA)001723). Total length 9.18 (Fig. 9B). Carapace 3.96 long and 3.05 wide. Clypeus 0.23 high. Eye diameters: AME 0.20, ALE 0.14, PME 0.30, PLE 0.26. Leg measurements: I: femur 3.15 / patella 1.65 / tibia 3.12 / metatarsus 2.51 / tarsus 1.19 / total 11.59; II: 3.15 / 1.56 / 2.82 / 2.40 / 1.14 / 11.04; III: 2.74 / 1.40 / 2.33 / 2.48 / 1.15 / 10.10; IV: 3.64 / 1.43 / 3.25 / 4.12 / 1.46 / 13.9. Leg formula 4123. Leg spination: tibia I–II v2-2-2-2-2, r0, p0, III–IV v1-1-1-1-2, r1-1, p1-1; metatarsus I–II v2-2-2, r0, p0, III v2-2-2, r1-1, p1-1, IV v1-1-1-1-1-2, r1-1, p1-1. Epigyne (Figs 1 D–F, 10D–E, 15D): hexagonal median sector with rounded posterior lateral projections; lateral projections curved, not totally covered by the elongated lateral sector; straight copulatory ducts; small fertilization ducts.
Variation. Five males: total length 6.44–7.78, carapace length 3.51–4.24, femur I 2.78–3.30. Five females: total length 7.95–9.22, carapace length 3.27–3.96, femur I 2.61–3.15.
Additional material examined. BRAZIL. Pará. Novo Progresso (-9.37472, -55.03361), 2 males and 1 female, 11.IX.2003, A. B. Bonaldo coll. (MPEG (ARA)001711); same locality, 1 male, 7–17.IX.2003, D. D. Guimar„es coll. (MPEG (ARA)018526); same locality and data, 1 male, D. D. Guimar „es, D. R. Santos-Souza & A. B. Bonaldo coll. (MPEG (ARA)018529); same locality, data, and collectors, 1 male (MPEG (ARA)018525); 1 female (MPEG (ARA)018522); 1 male (MPEG (ARA)018532); 1 female (MPEG (ARA)018527); 1 female (MPEG (ARA)018523); Novo Progresso (-9.36138, -55.03541), 1 male, 7–17.IX.2003, (MPEG (ARA)001846); Novo Progresso (-9.36724, -55.01997), 5 males and 6 females, 12.IX.2003, D. R. Souza coll. (MPEG (ARA)018548); Novo Progresso (-9.37333, -55.01944), 5 males and 4 females, 12.IX.2003, D. D. Guimar„es coll. (MPEG (ARA)001712); same locality and collector, 1 male, 7–17.IX.2003 (MPEG (ARA)018538); same locality and data, 1 male, D. D. Guimar „es, D. R. Santos-Souza & A. B. Bonaldo coll. (MPEG (ARA)018539); same locality, data and collectors, 1 male (MPEG (ARA)018535); 1 male (MPEG (ARA)018537); 1 female (MPEG (ARA)018536); 1 female (MPEG (ARA)018533).
Distribution. Known only from the type and nearby localities in Novo Progresso, Pará, Brazil (Fig. 19).
description: Published as part of Pereira, Maria Paula, Labarque, Facundo & Polotow, Daniele, 2020, Description of a new Neotropical spider genus in the family Ctenidae Keyserling 1877 (Araneae: Lycosoidea) from the Brazilian Amazon rainforest, pp. 375-396 in Zootaxa 4890 (3) on pages 377-383, DOI: 10.11646/zootaxa.4890.3.5, http://zenodo.org/record/4306273