Schismatothele quimbaya, Moeller & Weinmann & Guadanucci, 2023

Moeller, Wolf, Weinmann, Dirk & Guadanucci, José Paulo Leite, 2023, Genus Schismatothele Karsch, 1879 (Araneae, Theraphosidae): taxonomic notes and seven new species description, European Journal of Taxonomy 861, pp. 78-112 : 97-100

Schismatothele quimbaya sp. nov.

urn:lsid:zoobank.org:act:B92F67A7-DE68-4FA9-9A54-DEA6410EC977

Figs 15–16 , 59–66 , 87 ; Table 5

Diagnosis

Male resemble those of S. caeri sp. nov. and S. hacaritama by the palpal bulb without paraembolic apophysis. Differ from those of S. caeri by the tegulum with ventral processes near to embolus and the palpal tibia not swollen ( Figs 23–26 , 59–63 ). Differ from those of S. hacaritama by the granular aspect of tegulum ventral process (spiniform in S. hacaritama ) and by the retrolateral branch of tibial apophysis digitiform ( Figs 59, 64 ). Share with those of S. inflata the shape of palpal bulb, laterally flattened ( Figs 61–62 ) and S. merida sp. nov. by the presence of ventral granular process in tegulum ( Figs 41–42 , 59–60 ). Female unknown.

Etymology

The name is in honor of the Quimbaya indigenous group, natives of west Colombian Andes in the precolombian era.

Type material

Holotype COLOMBIA • ♂; Antioquia, Rio Habana ; 26 Aug. 1998; D. Weinmann leg.; MZSP 47524 .

Only type material known.

Description

Male (holotype MZSP 47524)

COLOR (in alcohol). Carapace, legs and chelicerae dark brown, sternum, labium reddish brown, abdomen light brown ( Figs 15–16 ).

MEASUREMENTS. Total length: 20.15. Chelicerae basal segment: length 3.45. Carapace slightly elongated, covered with long and fine bristles: length 10.16, width 8.82. Abdomen: length 9.91. Clypeus absent. Eye tubercle slightly elevated, sub-rectangular: length 0.99, width 1.96. Anterior eye row straight, posterior straight. Eyes and interdistances: AME 0.48, ALE 0.41, PME 0.31, PLE 0.37, AME–AME 0.15, AME– ALE 0.18, ALE–ALE 1.25, PME–PME 0.99, PME–PLE 0.06, PLE–PLE 1.47, AME–PME 0.15 ALE– PLE 0.22. Thoracic fovea straight, narrow, deep: width 1.57. Chelicerae basal segment with 10 welldeveloped teeth on furrow promargin and a group of ca 20 small teeth on proximal area of furrow. Intercheliceral tumescence absent. Maxillae with ca 100 cuspules, located on anterior inner corner. Labium trapezoidal: length 1.26, width 2.09, with ca 180 cuspules. Sternum slightly oval: length 4.41, width 4.63; with three pairs of sigilla, posterior ones longer than the others with the same distance from the edge.

PALPAL BULB. Flat shape, with subrectangular tegulum. Prolateral superior keel displaced to the dorsal area and inferior prolateal keel, upwards on the prolateral view. Presence of a ventral granular process in tegulum, near to embolus. Short embolus pointing upward. Paraembolic apophysis absent, instead, it has an apical keel with small apical striae ( Figs 59–63 ). Cymbium with two asymmetric lobes, retrolateral longer and wider; prolateral lobe elongated and laterally flattened; retrolateral lobe with a distal retrolateral protrusion. Palpal tibia slightly swollen, without mid-length concavity, with 14–15 short spines accumulated in a linear group, disposed on apical third in prolateral side ( Figs 65–66 ).

LEGS AND PALPS. Tibial spur I: prolatero-ventral spur with two separate branches of different length; retrolateral branch larger, slightly procurved, with a small spine inserted subapically, prolateral branch much shorter, slightly recurved, with contiguous spine with almost the same size ( Fig. 64 ). Metatarsus I bent retrolaterally to tibial spur. Superior tarsal claws without teeth. Tarsal scopulae: I and II entire without 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 12 trichae, interspersed with filiform trichobothria of different lengths. Tarsus IV not cracked. Leg formula 4123 ( Table 5 ).

SPINATION (proximal to distal). Cymbium and tarsi without spines. Palp: femur 0; patella 0; tibia p (2), (r) ca 15 megaspines. Leg I: femur (p) 2; patella (v) 1; tibia p (2), (r) 1-2-1; metatarsus (v) 1-1-1. Leg II: femur (p) 1; patella (v)1; tibia (v) 2-2-ap3, (p) 1; metatarsus (v) 1-2-ap2. Leg III: femur (p) 0-1-1, (r) 1; patela (r) 1; tibia (v)3-2-ap3, (p) 2, (r) 1; metatarsus (v)2-2-ap3, (p) 0-2-1, (r) 1-1-1. Leg IV: femur (p)1; patela (p)1; tibia (v) 2-3-ap2, (p)1-0-1, (r) 1-0-1; metatarsus: (v)2-3-ap3, (p) 0-1-1, (r) 1-2-1.

Figures

Figs 9–16. Schismatothele spp. 9–12. Schismatothele merida sp. nov. 9–10. Holotype, ♂ (MZSP 28411). 9. Dorsal view. 10. Prosoma, ventral view. 11–12. Paratype, ♀ (MZSP 28412). 11. Dorsal view. 12. Prosoma, ventral view. – 13–14. Schismatothele moonenorum sp. nov., holotype, ♂ (IBSP 168510). 13. Dorsal view. 14. Prosoma, ventral view. – 15–16. Schismatothele quimbaya sp. nov., holotype, ♂ (MZSP 47524). 15. Dorsal view. 16. Prosoma, ventral view. Scale bars = 10 mm.

Figs 59–66. Schismatothele quimbaya sp. nov., holotype, ♂ (MZSP 47524). 59–63. Palpal bulb, prolateral (59), retrolateral (60), ventral (61), dorsal (62), and frontal (63) views. 64. Tibial spur ventral view. 65–66. Palpal tibiae, right (65), and left (66). Abbreviations: A = apical keel; ASt = apical striae; E = embolus; PI = prolateral inferior keel; PS = prolateral superior keel; VGP = ventral granular process. Scale bars = 0.5 mm.

Fig. 87. Distribution map for species of Schismatothele Karsch, 1879.

Figs 23–32. Schismatothele caeri sp. nov. 23–31. Holotype, ♂ (MZSP 47440). 23–27. Palpal bulb, prolateral (23), retrolateral (24), ventral (25), dorsal (26), and frontal (27) views. 28–29. Tibial spur, prolateral (28), and ventral (29) views. 30–31. Palpal tibiae, right (30), and left (31). 32. Paratype, ♀ (MZSP 47427). Spermathecae, ventral view. Abbreviations: A = apical keel; ASt = apical striae; DS = dorsal receptacle; E = embolus; PI = prolateral inferior keel; PS = prolateral superior keel; PT = prolateral tegular apophysis; VS = ventral receptacle. Scale bars = 0.5 mm.

Figs 41–50. Schismatothele merida sp. nov. 41–47. Holotype, ♂ (MZSP 28411). 41–44. Palpal bulb, prolateral (41), retrolateral (42), ventral (43), and dorsal (44) views. 45. Tibial spur, ventral view. 46– 47. Palpal tibiae, right (46), and left (47). 48–50. Paratypes, ♀, spermathecae, ventral view. 48. MZSP 28412. 49. MZSP 28422. 50. MZSP 28421. Abbreviations: DS = dorsal receptacle; E = embolus; PA = paraembolic apophysis; VGP = ventral granular process; VS = ventral receptacle. Scale bars = 0.5 mm.