Schismatothele wayana Moeller & Weinmann & Guadanucci 2023, sp. nov.
Creators: name: Moeller, Wolf
name: Weinmann, Dirk
name: Guadanucci, José Paulo Leite
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theraphosidae
Schismatothele
Schismatothele wayana

description: Schismatothele wayana sp. nov.
urn:lsid:zoobank.org:act: FE18E19C-E426-45E7-8A02-F05550D74544
Figs 21–22, 75–82, 87; Table 7
Diagnosis
Males differ from those of all other species by the presence of prolateral and retrolateral paraembolic keels (Figs 75–79). Resemble those of S. benedettii, S. modesta and S. moonenorum sp. nov. by the embolus and paraembolic apophysis pointing forward (Figs 51–52) and S. benedettii by the flat shape of paraembolic apophysis (Figs 75–77). Females unknown.
Etymology
The name is in honor of the Wayana indigenous group, natives of the eastern region of the Pará State in Brazil.
Type material
Holotype BRAZIL • ♂; Pará, Jari-Almeirin; 11 Feb. 2005; T. Gardner leg.; MPEG 7363.
Paratypes BRAZIL • 2 ♂♂; same collection data as for holotype; MZSP 77130 • 2 ♂♂; same collection data as for holotype; IBSP 311777.
Other material examined
BRAZIL • 11 ♂♂; same collection data as for holotype; MPEG 7351, 7354, 7355, 7360, 7362 (2 specs), 7364 (2 specs), 7367 to 7369.
Description
Male (holotype MPEG 7363)
COLOR (in alcohol). Carapace, legs and chelicerae dark brown, sternum, labium reddish brown, abdomen light brown (Figs 21–22).
MEASUREMENTS. Total length: 14.94. Chelicerae basal segment: length 2.46. Carapace elongated: length 7.27, width 6.02. Abdomen: length 6.45. Clypeus absent. Eye tubercle slightly elevated, subrectangular: length 0.58, width 1.34. Anterior eye row slightly procurved, posterior slightly recurved.
Eyes and interdistances:AME 0.37, ALE 0.32, PME 0.19, PLE 0.25, AME–AME 0.11,AME–ALE 0.03, ALE–ALE 0.79, PME–PME 0.65, PME–PLE 0.04, PLE–PLE 0.93, AME–PME 0.07 ALE–PLE 0.08. Thoracic fovea slightly procurved, deep with a longitudinal Y-shaped depression on carapace: width 0.76. Chelicerae basal segment with eight well-developed teeth on furrow promargin and a group of ca 20 small teeth on proximal area of furrow. Intercheliceral tumescence absent. Maxillae ca 100 cuspules,
located on anterior inner corner. Labium trapezoidal: length 0.76, width 1.09, with ca 180 cuspules. Sternum slightly oval: length 3.23, width 3.12; with three pairs of sigilla, posterior ones longer than the others with the same distance from the edge.
PALPAL BULB. Tegulum piriformis, with a long prolateral superior keel (PS) and a short inferior prolateral keel below (PI). Paraembolic apophysis flat, with rounded tip, below embolus, pointing forward. Presence of prolateral and retrolateral paraembolic keels (Figs 75–79). Cymbium with two asymmetric lobes, retrolateral longer and wider; prolateral lobe elongated and laterally flattened; retrolateral lobe without a distal retrolateral protrusion. Palpal tibia swollen, without mid-length concavity, prolateral side with two parallel rows with 9–10 short spines disposed on apical third (Figs 80–81).
LEGS AND PALPS. Tibial spur I: prolatero-ventral spur with two separate branches of different lenght; retrolateral branch larger, slightly procurved, with a small spine inserted subapically, prolateral branch shorter, slightly recurved, with contiguous spine with almost the same size (Fig. 82). Metatarsus I bent retrolaterally to tibial spur. Superior tarsal claws without teeth. Tarsal scopulae: I and II entire with longitudinal band of conical setae, III and IV divided by longitudinal band of conical setae. Metatarsal scopulae not dense, extension: I on distal ¾, II on more than distal half, III on distal half, IV on less than half. Clavate tarsal trichobothria in two rows, each with ca 9 trichae, interspersed with filiform trichobothria of different lengths. Tarsus IV cracked. Leg formula 4123 (Table 7).
SPINATION (proximal to distal). Cymbium and tarsi without spines. Palp: femur 0; patella 0; tibia (r) ca 10 megaspines. Leg I: femur (p) 1; patella (v) 1; tibia (r) 1-1-1; metatarsus (v) 1-1-1. Leg II: femur (p) 1; patella (v)1; tibia (v) 1-1-ap2, (p) 0-1-ap1; metatarsus (v) 0-2-ap2. Leg III: femur (p) 0-0-2, (r) 1; patela (r) 1; tibia (v)2-2-ap3, (p) 1, (r) 1; metatarsus (v)2-2-ap3, (p) 0-1-1, (r) 0-1-1. Leg IV: femur (p)1, (r) 1; patela (p) 1; tibia (v) 3-3-ap2, (p)1-0-2, (r) 1; metatarsus (v)2-3-ap3, (p) 1-1-1, (r) 1-1-1.
description: Published as part of Moeller, Wolf, Weinmann, Dirk & Guadanucci, José Paulo Leite, 2023, Genus Schismatothele Karsch, 1879 (Araneae, Theraphosidae): taxonomic notes and seven new species description, pp. 78-112 in European Journal of Taxonomy 861 on pages 103-105, DOI: 10.5852/ejt.2023.861.2069, http://zenodo.org/record/7737459