Cuacuba morrodopilar, Prete, Pedro H., Cizauskas, Igor & Brescovit, Antonio D., 2018

Prete, Pedro H., Cizauskas, Igor & Brescovit, Antonio D., 2018, Three new species of the spider genus Plato and the new genus Cuacuba from caves of the states of Para and Minas Gerais, Brazil (Araneae, Theridiosomatidae), ZooKeys 753, pp. 107-162 : 147-150

Cuacuba morrodopilar sp. n. Figs 14, 15, 17

Types.

Male holotype and female paratype from Cave MP_07 (19°15'30"S, 43°22'35"W), Morro do Pilar, Minas Gerais, Brazil, 12-24/IX/2011, Equipe Carste coll., deposited in IBSP 174389; Paratypes: male and female (IBSP 174387); one female (MZSP 70928); one female (MPEG 32026), 13-17/II/2012, all with same of data of holotype.

Other material examined.

Brazil, Minas Gerais: Morro do Pilar, Cave MP_06 (19°14'58"S, 43°21'09"W), 3♀, 12-24/IX/2011 (IBSP 174383-174384); 3♀, 12-24/IX/2011, J. Mascarenhas coll. (IBSP 174385, IBSP 174394); 1♂ 3♀, 13-17/II/2012 (IBSP 174395, IBSP 174400); Cave MP_07 (19°15'30"S, 43°22'35"W), 2♂ 8♀, 12-24/IX/2011 Equipe Carste coll. (IBSP 174387-IBSP174392); 15♀, 13-17/II/2012, (IBSP 174396-174399) all collected by Equipe Carste; 1♂ 7♀, 12-24/IX/2011, J. Mascarenhas coll. (IBSP 174386- IBSP 174389, IBSP 174393).

Etymology.

The specific name is a noun in apposition taken from the type locality.

Diagnosis.

Male of C. morrodopilar sp. n. differs from C. mariana sp. n. by the anterior conductor apophysis with flattened tip (Fig. 14 D–E) and by the median apophysis with protruding and recurve tip, darkened (Fig. 14D, F, H). Females can be distinguished by the posterior margin of epigynal plate in “U” shape, with very remarkable distally notched transversal groove (Fig. 15 A–E).

Description.

Male (holotype IBSP 174389). Cephalothorax and sternum brown. Chelicerae, endites and labium brownish. Legs light brown. Abdomen grayish. Total length: 1.68. Carapace: 0.91 long. Clypeus 0.18 high. Sternum 0.4 long, 0.33 wide. Eye measurements: AME: 0.06; ALE-PLE: grouped, 0.06 each; PME-PME: separated by 1 PME (0.06 each). Legs: I femur 0.77/ patella 0.35/ tibia 0.67/ metatarsus 0.48/ tarsus 0.44/ total 2.7. II 0.75/ 0.33/ 0.65/ 0.38/ 0.4/ 2.51. III 0.48/ 0.26/ 0.36/ 0.32/ 0.31/ 1.73. IV 0.63/ 0.28/ 0.46/ 0.35/ 0.3/ 2.02. Anterior conductor apophysis longer and thinner than posterior one (Fig. 14 C–H). Abdomen: 0.81 long.

Female (paratype IBSP 174389). Coloration as in male. Total length: 1.8. Carapace: 0.9 long. Clypeus 0.18 high. Sternum 0.51 long, 0.48 wide. Eye measurements: AME: 0.07; ALE-PLE: grouped, 0.06 each; PME-PME: separated by 1 PME (0.07 each). Legs: I femur 1.07/ patella 0.45/ tibia 0.75/ metatarsus 0.61/ tarsus 0.48/ total 3.36. II 0.92/ 0.46/ 0.61/ 0.45/ 0.44/ 2.88. III 0.58/ 0.3/ 0.42/ 0.37/ 0.36/ 2.03. IV 0.76/ 0.3/ 0.54/ 0.44/ 0.35/ 2.39. Epigynal plate larger than long, with long bristles (Fig. 14 A–D). Spermathecae connate (Fig. 15B, D–E). Abdomen: 1.24 long.

Variation.

2 males: total length: 1.3-1.7; carapace: 0.75-0.91; femur 1: 0.77-0.9; 10 females: total length: 1.78-2.8; carapace: 0.75-1.05; femur I: 1-1.25.

Distribution.

Known only from the type locality, Morro do Pilar, Minas Gerais, Brazil (Fig. 17).