Indiani gaspar Rodrigues, Cizauskas, and Lemos 2020
- Dataset
- A new genus of cave spider from Neotropical region (Gnaphosidae: Prodidominae)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Araneae
- family
- Gnaphosidae
- genus
- Indiani
- species
- Indiani gaspar
description
Description. Male (holotype). Total length: 1.54. Carapace 0.74 long, 0.68 wide; abdomen 0.8 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 d 1 - 1 - 0, p 0 - 0 - 1; tibia v 1 p- 2 - 2 - 2 - 2; metatarsus v 2 - 2 - 2. II — femur d 1 - 1 - 0; tibia v 1 p- 2 - 2 - 2 - 2; metatarsus v 2 - 2 - 2. III — femur d 1 - 1 - 0; tibia d 0 - 2 - 0, p 0 - 0 - 1, r 0 - 0 - 1, v 1 p- 2 - 2; metatarsus v 0 - 1 r- 2; p 0 - 0 - 1. IV — femur d 1 - 1 - 0; tibia d 0 - 3 - 0, p 0 - 0 - 1, r 0 - 0 - 1, v 1 p- 1 p- 2; metatarsus p 1 - 0 - 1, r 0 - 1 - 0, v 0 - 0 - 1 p. 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 d 1 - 1 - 0, p 0 - 0 - 1; tibia v 2 - 2 - 2 - 2 - 2; metatarsus v 2 - 2 - 2. II — femur d 1 - 1 - 0; tibia v 2 - 2 - 2 - 2 - 2; metatarsus v 2 - 2. III — femur d 1 - 1 - 0; tibia d 0 - 1 - 0, p 0 - 0 - 1, r 0 - 0 - 1, v 0 - 1 p- 1 p; metatarsus v 0 - 2 - 2; p 0 - 1 - 1; r 0 - 0 - 1. Epigynum as in generic description (Figs 3 E – G).
description
Figs 1 – 4
diagnosis
Diagnosis. See generic diagnosis.
discussion
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.
distribution
Distribution. Known only from caves in Prados, state of Minas Gerais, Brazil (Fig. 4).
etymology
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.
materials_examined
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).