Genus Schismatothele Karsch, 1879 (Araneae, Theraphosidae): taxonomic notes and seven new species description
Author
Moeller, Wolf
D86FA4FF-8863-4AA2-A8B9-C2122A81889A
Laboratório de Aracnologia de Rio Claro, Programa de Pós-graduação em Ciências Biológicas (Zoologia), Departamento de Biodiversidade, Instituto de Biociências, Universidade Estadual Paulista. Av. 24 A 1515, 13506 - 900 Rio Claro-SP, Brazil.
wolf.moeller@unesp.br
Author
Weinmann, Dirk
315572D8-5893-4FA1-A930-565B85BE2313
Rotkehlchenweg 38, 70734 Fellbach, Germany.
dirkweinmann@t-online.de
Author
Guadanucci, José Paulo Leite
D4955FF5-FE7F-4E68-AB2F-4A89593F9850
Laboratório de Aracnologia de Rio Claro, Programa de Pós-graduação em Ciências Biológicas (Zoologia), Departamento de Biodiversidade, Instituto de Biociências, Universidade Estadual Paulista. Av. 24 A 1515, 13506 - 900 Rio Claro-SP, Brazil.
jose.guadanucci@unesp.br
text
European Journal of Taxonomy
2023
2023-03-14
861
78
112
http://dx.doi.org/10.5852/ejt.2023.861.2069
journal article
54048
10.5852/ejt.2023.861.2069
3dbcaa54-c566-4625-9d1c-5cd2c341934e
2118-9773
7737459
10DF4F68-C7AF-4567-9C54-B260F26E2B65
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.
Table 5.
Length of legs and palpal segments of holotype, ♂ (MZSP 47524) of
Schismatothele quimbaya
sp. nov.
|
I
|
II
|
III
|
IV
|
Palp
|
| Femur |
8.58 |
7.52 |
6.63 |
9.01 |
5.09 |
| Patella |
5.06 |
4.23 |
3.88 |
4.29 |
3.19 |
| Tibia |
6.81 |
5.84 |
4.51 |
7.01 |
4.27 |
| Metatarsus |
7.11 |
6.02 |
6.28 |
9.72 |
– |
| Tarsus |
5.06 |
4.56 |
4.01 |
4.09 |
2.43 |
| Total |
32.62 |
28.17 |
25.31 |
34.15 |
14.98 |
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
).
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.
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.