Marma sinuosa sp. nov.

Figures 20–24, 57F, 58H

Etymology. The epithet is an adjective in Latin and refers to the shape of the process on the embolic disc (Figs 20C, 22A, 23A, 57F).

Diagnosis. Males of M. sinuosa sp. nov. are most similar to those of M. wesolowskae sp. nov., both with similar length of the embolic disc and PED (Figs 20C, 22A, 23A, 30C, 32A, 33A, 57D, F). However, they differ by having a sinuous PED (Figs 20C, 22A, 23A, 57F), which is straight in M. wesolowskae sp. nov. (Figs 30C, 32A, 33A, 57D). Also, M. sinuosa sp. nov. can be distinguished from all currently known Marma species by having the male palp with a thick RTA (Figs 20D, 22B, 23 D–E), being narrow (finger-shaped) in the other species (Figs 30D, 33E, 36D, 37B), and by having the copulatory openings fused into a single median opening (Figs 21E, 22G, 24A, C).

Description. Male (Holotype, UFMG 13526). Total length: 2.96. Carapace 1.61 long, 1.04 wide, 0.85 high. Ocular quadrangle 0.78 long. Anterior eye row 1.08 wide, posterior 0.96 wide. Legs (3=4)12. Length of legs: I 2.49 (0.80 + 0.92 + 0.77); II 2.39 (0.77 + 0.90 + 0.72); III 3.10 (1.09 + 1.04 + 0.97); IV 3.10 (0.96 + 1.04 + 1.10).

Leg macrosetae: Femur I d1-1-1, p1di, r0; II–IV d1-1-1, p1di, r1di. Patella I–II 0; III–IV p0, r1. Tibia I p0 (or p0-1-0), r0, v1r-2-2; II p0-1-0, r0, v1r-1r-2; III p0-1-1-0, r0-1-1-0, v1p-0-0-2; IV p0-1-1-0, r1-1-1-0, v1p-0-0-2. Metatarsus I p1di, r0, v2-2: II p1-1, r1di, v2-2; III d1p-0-0, p1-0-2, r1-0-2, v2-0-2; IV p1-1-2, r1-1-2, v1p-0-2.

Color in alcohol (Figs 20 A–B): cephalic area totally covered with scales; thoracic area with most concentration of scales in distal-central region; abdomen ventrally with thick longitudinal dark brown stripe; edge of thick dark stripe with pale circles; legs: femur I without dark marks, II with retrolateral surface with proximal and distal dark spot, III–IV with dark distal ring and proximal region with dark proventral spot; tibia I–II without dark marks, III with dark proximal ring, IV with dark proximal ring and distal region with prolateral and retrolateral dark spot; tarsus I almost black, II with black tip, III–IV with dark proximal ring.

Palp: RTA thick with narrow tip (Figs 20D, 22B); narrow embolic disc with straight prolateral border and sinuous retrolateral border (Figs 20C, 22A); PED sinuous (Figs 22A, E, 23A); base of embolus shaft large and bearing a prolateral lobe (Figs 22C, E, 23C); tip of embolus ends slightly beyond tip of PED (Figs 22A, E); cymbium with retrodorsal depression (Figs 20D, 23D).

Female (Paratype, IBSP 87545). Total length: 3.01. Carapace 1.63 long, 1.10 wide, 0.78 high. Ocular quadrangle 0.77 long. Anterior eye row 1.08 wide, posterior 0.98 wide. Legs 3412. Length of legs: I 2.35 (0.81 + 0.88 + 0.66); II 2.33 (0.81 + 0.85 + 0.67); III 3.19 (1.05 + 1.12 + 1.02); IV 3.18 (1.00 + 1.04 + 1.14).

Leg macrosetae: Femur I d1-1-1, p1di, r0; II d1-1-1, p1di, r1di; III d1-1-1, p1di, r0; IV d1-1-1, p0, r0. Patella I–II 0; III p0, r1; IV p0, r0 (r1). Tibia I p0-1-0, r0, v1r-2-2; II p0-1-0, r0, v1r-2-2 (or v1r-2-1r); III p0-1-1-0, r0-0-1-0 (or r0-1-1-0), v1p-0-0-1p (or v1p-0-0-2); IV p0-1-1-0, r0-1-1-0 (or r1-1-1-0), v0-1p-0-2. Metatarsus I p1di, r0, v2-2; II p1-1, r1di, v2-2; III d1p-0-0, p1-0-2, r1-0-2, v2-0-2; IV p1-1-2, r1-1-2, v1p-0-2.

Color in alcohol (Figs 21 A–D): carapace as in male; abdomen ventrally pale; legs: femur I–II with dark distal ring and proximal region with prolateral and retrolateral dark spot, III–IV with dark distal ring and proximal region with dark proventral spot; tibia I–II with dark proximal ring and distal region with retrolateral and prolateral dark spot, III–IV with proximal and distal dark ring; tarsus I–II without dark marks, III–IV with dark proximal ring.

Epigyne (Figs 21 E–F, 22F–G, 24A–F): copulatory openings fused into a single median opening aligned with plane of posterior surface of primary spermathecae; copulatory duct medium-sized, fused in their initial parts; proximal copulatory duct twice as long as distal section; primary spermathecae rounded, with narrow distal region.

Type material. Holotype ♁: BRAZIL: Pernambuco: Serra do Pará, Santa Cruz do Capibaribe, 07°52’29.2’’S, 36°24’10.06’’W, leg. F.M.G. Las-Casas, 26–28.I.2012 (UFMG 13526).

Paratypes: BRAZIL: Sergipe: Canindé de S„o Francisco, Usina Hidrelétrica de Xingó [09°37’27.1”S, 37°47’51.8”W], leg. L. Ianuzzi et al., 4.III.2000 – 29.III.2001, 1♁ (IBSP 123649), 1♀ (IBSP 87545) .

Other material examined. BRAZIL: Pernambuco: Santa Cruz do Capibaribe, Serra do Pará, 07°52’29.2’’S, 36°24’10.06’’W, leg. F.M.G Las-Casas, 15.IX.2011 – 28.I.2012, 2♁ (UFMG 13479), 2♁ (UFMG 13502), 1♁ (UFMG 13509), 1♁ (UFMG 13510), 1♁ (UFMG 13520), 2♁ (UFMG 13531), 3♁ (UFMG 13563), 3♁ (MPEG 37128) . Sergipe: Canindé de S„o Francisco, Usina Hidrelétrica de Xingó [09°37’27.1”S, 37°47’51.8”W], leg. L. Ianuzzi et al., 4.III.2000 – 1.III.2001, 1♀ (IBSP 123648) , 1♀ (IBSP 123650) .

Distribution. Known from the Brazilian states of Pernambuco and Sergipe (Fig. 59B).