Revalidation of the genus Sadala Simon, 1880 with the description of a new genus of Neotropical huntsman spiders (Araneae, Sparassidae)
Author
Rheims, Cristina A.
0000-0003-4418-0552
carheims@gmail.com
Author
Jäger, Peter
0000-0003-4418-0552
carheims@gmail.com
text
Zootaxa
2022
2022-05-13
5135
1
1
80
journal article
94101
10.11646/zootaxa.5135.1.1
b7383fd7-d4f4-492a-9e59-a2e3738157f9
1175-5326
6550195
0CC0D586-E099-4593-9032-EA1885F00F3B
Sadala kaiabi
spec. nov.
Figs 13–23
,
90
Type material.
Holotype
:
BRAZIL
:
Mato Grosso
:
♂
,
Alta Floresta
[
‑9.8760
,
‑56.0860
],
8 August–20 September 2009
,
J.S. Oliveira
leg. (
IBSP 246434
)
.
Paratypes
:
BRAZIL
:
Mato Grosso
:
1♀
,
Cotriguaçu
,
Fazenda São Nicolau
(
‑9.8333
,
‑58.2333
),
14 October 2010
,
A.J. Santos
leg. (
UFMG 7834
)
;
1♀
, same locality as previous specimen,
January 2018
,
G. Almeida
leg. (
IBSP 233316
)
.
Etymology.
The specific name refers to the Kaiabi indigenous people, whose former territory included the distribution areas of this species; noun in apposition.
Diagnosis.
Males of
S. kaiabi
spec. nov.
resemble those of
S. punicea
(
Figs 45–47
) and
S. yuyapichis
spec. nov.
(
Figs 83–85
) by the palp with embolus arising from tegulum at 4 o’clock position (
Fig. 14
). They are distinguished from both species by the RTA tapering and pointed (
Fig. 15
) and conductor tip barely surpassing the anterior margin of the alveolus (
Fig. 14
) (RTA roughly the same width throughout, not pointed and conductor tip surpassing the anterior margin of the alveolus by at least half its length in
S. punicea
and
S. yuyapichis
spec. nov.
). Females resemble those of
S. keyserlingi
(
Figs 27–29
) by the epigyne with MS triangular, wider than long, widest anteriorly (
Figs 16
). They are distinguished from the those of the latter species by the vulva with FW slender, slightly wider than the ducts between first and second turns (FW dilated, four times wider than ducts between first and second turns in
S. keyserlingi
) (
Fig. 17
).
Description. Male (
holotype
):
Total length 10.3. Prosoma: 5.0 long, 5.1 wide. Opisthosoma: 5.0. Long, 3.0 wide. Eyes: diameters: 0.40, 0.34, 0.25, 0.30; interdistances: 0.35, 0.22, 0.55, 0.55, 0.37, 0.25. Legs: I: 29.7 (8.0, 3.0, 8.1, 8.5, 2.1); II: 31.6 (8.5, 3.1, 8.7, 9.0, 2.3); III: 21.8 (6.5, 2.5, 5.5, 5.7, 1.6); IV: 24.3 (7.1, 2.4, 6.2, 6.7, 1.9). Spination follows the generic pattern, except tibia II: d1-0-1 and patella III: p0. Palp: RTA two times longer than wide, disto-ventrad in retrolateral view; PTA triangular, as wide as long; subtegulum not visible in ventral view; tegulum rounded; conductor 1.5 times longer than wide; roughly the same with throughout (
Figs 13–15
,
19–21
).
Female (IBSP 233316,
paratype
):
Total length 17.8. Prosoma 6.8 long, 6.3 wide. Opisthosoma 10.8 long, 7.0 wide. Eyes: diameters: 0.55, 0.46, 0.34, 0.42; interdistances: 0.43, 0.25, 0.70, 0.70, 0.40, 0.28. Legs: I: 29.0 (8.2, 3.1, 7.6, 8.0, 2.1); II: 30.8 (8.8, 3.4, 8.1, 8.4, 2.1); III: 22.6 (6.8, 2.7, 5.8, 5.5, 1.8); IV: 25.1 (7.4, 2.7, 6.3, 6.7, 2.0). Spination follows the generic pattern. Epigyne: EF wider than long; MAB embedded in EF (
Fig. 22
); LL touching each other posteriorly; TP roughly two times wider than long (
Figs 16
,
22
). Vulva: internal ducts with FW posteromediad; GP short, rounded, emerging from ducts at second turn; SP spherical; FD laterad (
Figs 17–18
,
23
).
Variation.
Females (n = 2): total length 15.4–17.8; prosoma length 6.8–7.2; femur I length 8.2–8.6.
Distribution.
Known from northern state of
Mato Grosso
,
Brazil
(
Fig. 90
).