A new genus of cave spider from Neotropical region (Gnaphosidae: Prodidominae)
Author
Rodrigues, Bruno V. B.
Author
Cizauskas, Igor
Author
Lemos, Yuji
text
Zootaxa
2020
2020-01-10
4722
1
77
83
journal article
275277
10.11646/zootaxa.4722.1.8
03b374c1-2626-4fed-86ef-a63ea42248da
1175-5326
3603724
8B45C687-4552-4C19-8E0F-C5C09389E97F
Indiani gaspar
s
p. nov.
Figs 1–4
Remarks.
Individuals of
Indiani gaspar
sp. nov.
were collected in limestone caves and has some typical troglomorphic traits of troglobite species, such as loss or reduction of eyes and weak pigmentation (
Christiansen 2012
). However, as observed by
Rodrigues
et al.
(2018)
, these characteristics also are observed in epigean species of prodidominae and only the appendage elongation seems to be an important morphological indicative to determine species troglobites in subfamily. In addition, the lack of samplings in epigean habitats does not allow us to determine of the troglobitic status in
I. gaspar
sp.nov.
Type Material.
Male
holotype
from
Brazil
,
Minas Gerais
, Prados, Cave HOL_0020 (
44°03’59”W
21°11’06”S
),
13–16 March 2017
, Eq. Spelayon leg., deposited in
IBSP
201864.
Paratypes
:
Brazil
,
Minas Gerais
,
Prados
,
Cave
HOL_0001 (
44°03’52”W
21°10’57”S
),
17–19 November 2014
,
Eq. Spelayon
leg.,
1 female
(
IBSP 201863
)
.
Etymology.
The specific name is a noun in apposition referring to character “Casper, the friendly ghost” that in Portuguese is known as “Gasparzinho”, once the species has weak pigmentation like a ghost.
FIGURE 3.
Indiani gaspar
sp. nov.
,
genital organs: A, C) male palp, ventral view; B, D) same, retrolateral view; E) epigynum, ventral view; F) Same; G) vulva, dorsal view.A—atrium; C—conductor; CD—copulatory duct; E—embolus; FD—fertilization duct; MA—median apophysis; PEx—posterior extension of epigynum; RTA—retrolateral tibial apophysis.
Diagnosis.
See generic diagnosis.
Description.
Male (
holotype
). Total length: 1.54. Carapace 0.74 long, 0.68 wide; abdomen0.8 long, 0.54 wide; sternum 0.5 long, 0.44 wide; ALS 0.15 long, 0.06 wide. Eyes absent. Chelicerae 0.26 long.. Leg formula 4123; measurements: I: 2.02 (0.59, 0.25, 0.48, 0.35, 0.35); II: 1.78 (0.50, 0.27, 0.40, 0.31, 0.30); III: 1.68 (0.45, 0.22, 0.36, 0.34, 0.31); IV: 2.12 (0.60, 0.26, 0.45, 0.41, 0.40). Leg spination: I—femur d1-1-0, p0-0-1; tibia
v1
p-2-2-2-2; metatarsus
v2-2
-2. II—femur d1-1-0; tibia
v1
p-2-2-2-2; metatarsus
v2-2
-2. III—femur d1-1-0; tibia d0-2-0, p0-0-1, r0-0-1,
v1
p-2-2; metatarsus v0-1r-2; p0-0-1. IV—femur d1-1-0; tibia d0-3-0, p0-0-1, r0-0-1,
v1
p-1p-2; metatarsus p1-0-1, r0-1-0, v0-0-
1p.
Palp as in generic description (
Figs 3
A–D).
Female
: Female (
paratype
). Total length: 1.88. Carapace 0.72 long, 0.54 wide; abdomen 0.98 long, 0.58 wide; sternum 0.53 long, 0.44 wide; ALS 0.15 long, 0.06 wide. Only ALE present. Eye diameter and interdistance: ALE 0.05; ALE–ALE 0.04. Chelicerae 0.25 long.. Leg measurements: I: 2.07 (0.57, 0.30, 0.50, 0.35, 0.35); II: 1.75 (0.50, 0.25, 0.40, 0.27, 0.33); III: 1.64 (0.44, 0.22, 0.32, 0.35, 0.31). Leg spination: I—femur d1-1-0, p0-0-1; tibia
v2-2
-2- 2-2; metatarsus
v2-2
-2. II—femur d1-1-0; tibia
v2-2
-2-2-2; metatarsus
v2-2.
III—femur d1-1-0; tibia d0-1-0, p0-0- 1, r0-0-1, v0-1p-1p; metatarsus v0-2-2; p0-1-1; r0-0-1. Epigynum as in generic description (
Figs 3
E–G).
Distribution.
Known only from caves in Prados, state of
Minas Gerais
,
Brazil
(
Fig. 4
).