Papiri cabruca Rheims, 2025, sp. nov.
Creators: name: Rheims, Cristina A.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Sparassidae
Papiri
Papiri cabruca

description: Papiri cabruca sp. nov.
Figs 1, 3, 7, 9, 17–31, 78
Type material. Holotype: ♂, BRAZIL: Bahia: Una, Reserva Biológica de Una [-15.1667, -39.1000], 15–28 November 2000, A.D. Brescovit et al. leg. (IBSP 47105). Paratypes: BRAZIL: Bahia: 1 ♀, same vial as holotype (IBSP 47105); 1 ♂, same data as for holotype (IBSP 47117); 1 ♀, same data as for holotype (IBSP 47115); 1 ♂, same data as for holotype (IBSP 47126); 1 ♀, same data as for holotype (IBSP 47107); 1 ♂, same data as for holotype (IBSP 47116); 1 ♀, Porto Seguro, Parque Nacional do Monte Pascoal [-16.8699, -39.2728], 22 April 1998, A.D. Brescovit et al. leg. (IBSP 18482).
Etymology. The specific name refers to a cultivation system by which the cacao trees are planted under the shade of native forest trees. “Cabruca-cacau” system is mostly used in cacao plantations in southern Bahia and is especially important to help preserve Atlantic Forest areas; noun in apposition.
Diagnosis. Specimens of P. cabruca sp. nov. resemble those of P. cacau sp. nov. (Figs 41–46) by the male palps with single branched RTA (two or three branches in the other species) and female epigyne with MS partially covering LL and anterior groove projecting posteriorly over MS (LL partially covering MS and anterior groove not projecting over MS in the other species). They are distinguished from those of the latter species by the male palps with MA cup-shaped, with strongly indented margin (Figs 22, 27) (small, knob-shaped in P. cacau sp. nov.) and by the epigyne with LL with posterior triangular projections and MS not surpassing the posterior margin of LL (Figs 24, 29) (LL with posterior margin smooth and MS surpassing the posterior margin of LL in P. cacau sp. nov.).
Description. Male (holotype): Coloration as in Figs 17–18. Total length 13.2. Dorsal shield of prosoma: 6.0 long, 5.1 wide. Opisthosoma: 6.7 long, 4.0 wide. Eyes: diameters: 0.36, 0.30, 0.20, 0.30; interdistances: 0.30, 0.16, 0.54, 0.52, 0.24, 0.14. Legs (12/43): I: 19.2 (5.7, 3.0, 4.9, 4.4, 1.2); II: 18.4 (5.5, 2.9, 4.6, 4.2, 1.2); III: 15.0 (4.7, 2.4, 3.4, 3.4, 1.1); IV: 18.4 (5.6, 2.1, 4.3, 4.9, 1.5). Spination follows the generic pattern, with tibiae I–II with three pairs of ventral spines. Palp: VTA absent; RTA single branched, shaped as an upside-down shoe in retrolateral view and with distal margin medially depressed in ventral view; ST visible between 9–12 o’clock in ventral view; spermophore with pronounced undulation between 6–7 o’clock, close to embolus base; TBE long, with rounded distal point; TBC laminar, roughly as wide as long with rounded tip and more sclerotized margins; C hood three times longer than wide, strongly concave in retrolateral view; tip truncated and curved; E filiform, arising from tegulum at 8:30 o’clock position; MA roughly as wide as long, widest distally (Figs 21–23, 26–28).
Female (IBSP 41116, paratype): Coloration as in Figs 19–20. Total length 13.6. Dorsal shield of prosoma: 6.1 long, 5.0 wide. Opisthosoma: 7.3 long, 4.2 wide. Eyes: diameters: 0.36, 0.32, 0.22, 0.30; interdistances: 0.30, 0.20, 0.50, 0.52, 0.20, 0.08. Legs (4123): I: 16.8 (5.1, 2.9, 4.2, 3.5, 1.1); II: 16.4 (5.1, 2.8, 4.0, 3.4, 1.1); III: 13.4 (4.3, 2.2, 2.9, 2.9, 1.1); IV: 17.0 (5.1, 2.1, 3.8, 4.6, 1.4). Spination follows the generic pattern except tibiae I–II: v2-2-2- 2, metatarsus I: p1-1-0; tibia III: p0-1-0; r0-1-0; femur IV: r1-1-1. Epigyne: EF slightly longer than wide; with one long lateral MAB on each side (Fig. 24), not always distinct; LL rounded, with lateral triangular projections almost three times longer than wide; MS oval, wider than long; ag forming a triangular elevated area over the entire length of MS (Figs 24, 29). Vulva: IDS with Dh irregularly shaped connecting to Ds posteriorly; Ds irregularly shaped with many chambers visible by transparency; FD laterad (Figs 25, 30–31).
Variation. Males (n=3): total length 11.5–13.2; prosoma length 5.2–6.0; femur I length 5.0–5.7. Females (n=5): total length 11.6–13.9; prosoma length 5.0–6.2; femur I length 4.0–5.1.
Distribution. Known only from the state of Bahia, northeastern Brazil (Fig. 78).
description: Published as part of Rheims, Cristina A., 2025, Papiri gen. nov., a new genus of huntsman spiders (Araneae: Sparassidae: Sparianthinae) from Brazil, pp. 526-548 in Zootaxa 5583 (3) on pages 532-533, DOI: 10.11646/zootaxa.5583.3.6, http://zenodo.org/record/14804629