Ciniflella armasi sp. nov.

Figs 1, 19–20, 26A–B, 27

Diagnosis. Males are similar to those of C. marambaia by having a retrobasal cymbial horn, but can be distinguished by the thicker, shorter median apophysis, the slightly shorter embolus and by lacking a dorso-basal projection of the cymbium (Figs 19B–D, 20C–F) (long and thin median apophysis, longer embolus, dorso-basal projection in C. marambaia, Fig2 21C–E, 22B–F). Females are similar to those of C. pains by having an elongate median plate in the epigyne, but can be distinguished by having a narrower median plate, and smaller lateral depressions (Figs 19G–H, 26A–B) (slightly wider median plate and larger depressions in C. pains, Figs 17I, 26E–F).

Types. Male holotype and female paratype from Área de Relevante Interesse Ecológica (ARIE) Floresta da Cicuta (22°32’53”S 44°05’34”W) [-22.54806, -44.09278], Volta Redonda, Rio de Janeiro, Brazil, 2.X.2003, E.F. Ramos coll., pitfall trap, deposited in IBSP 250002. One male paratype from the same locality, trilha principal (22°32’54.1”S 44°5’15.1”W) [-22.54806, -44.09278], elev. 387 m, 19–20.VI.2021, P. H. Martins et al. coll., day and night active collecting (UFMG 32616, SE131, together with 6 immatures, not paratypes) and one female paratype (UFMG 32615, SE134); both examined from photographs, provided by Pedro Martins).

Etymology. The specific name is a patronymic in honor to Luis de Armas for his important contributions to American arachnology.

Description. Male (holotype). Carapace and legs orange. Eye margins black. Chelicerae reddish brown with three retromarginal teeth. Labium, endites and sternum yellow. Opisthosoma yellowish. Total length 3.7. Carapace 1.7 long, 1.3 wide. Clypeus 0.04 high. Eye diameters and interdistances: AME 0.08, ALE 0.12, PME 0.10, PLE 0.10, AME–AME 0.02, AME–ALE 0.04, PME–PME 0.08, PME–PLE 0.08, ALE–PLE 0.04, AME–PME 0.06. Leg measurements: I: femur 1.5/ patella 0.8/ tibia 1.4/ metatarsus 1.2/ tarsus 0.8/ total 5.7; II: 1.3/0.6/1.0/1.0/0.7/4.6; III: 1.2/0.6/0.7/1.0/0.6/4.1; IV: 1.6/0.7/1.2/1.8/0.8/6.1. Leg formula: 4123. Leg spination follows the genus pattern, except: tibia I–II v2-2-2-2, p1-1-0, r1-1-0; III v2-2-2; IV v2-2-2, p1-1-2, r1-1-2; metatarsus I–II p0-1-1, r0-1-1; III v2-2-2. Palp: RTA elongate, with a basal tooth and a bifid end; cymbium with retrobasal horn, median apophysis thick, shorter, hook-shaped with small tooth on concave mesal margin, tegulum with membranous tegular process near the base of embolus (Figs 19B–D, 20C–F).

Female (paratype IBSP 250002). Coloration as in male, except opisthosoma cream. Total length 4.1. Carapace 1.5 long, 1.1 wide. Clypeus 0.04 high. Eye diameters and interdistances: AME 0.06, ALE 0.10, PME 0.10, PLE 0.10, AME–AME 0.02, AME–ALE 0.04, PME–PME 0.06, PME–PLE 0.06, ALE–PLE 0.02, AME-AMP 0.06. Leg measurements: I: femur 1.3/ patella 0.6/ tibia 1.0/ metatarsus 1.0/ tarsus 0.6/ total 4.5; II: 1.1/0.6/0.8/0.7/0.5/3.7; III: 1.1/0.4/0.7/0.7/0.6/3.5; IV: 1.3/0.6/1.1/1.5/0.8/5.3. Leg formula: 4123. Leg spination follows the genus pattern, except: tibia I–II v2-2-2; III v2-2-2; IV p1-1-1, r1-1-1; metatarsus I–II v2-2-2. Epigyne: Median plate elongate, with lateral depressions at the side, filled with mating plugs; copulatory ducts relatively short, spermathecae simple, oval (Figs 19G–H, 26A–B).

Variation. Eight males: total length 3.0–3.7; carapace 1.5–1.7; femur I 1.5–1.8.

Other material examined. BRAZIL. Rio de Janeiro: Volta Redonda, ARIE Floresta da Cicuta (22°32’53”S 44°05’34”W) [-22.54806, -44.09278], 2002, Equipe Museum UBM coll ., 1♂ (IBSP 276887); 2♂ (IBSP 277514); 02.X.2003, E.F. Ramos coll., 2♂ (IBSP 276887; SEM); 1♂ (IBSP 276915); 2♂ (IBSP 249949); 11.III.2002, Equipe Museu UBM coll ., 1 ♂ (IBSP 240141; photos) .

Natural History. The specimens collected in the type locality were abundant in the deep layers of leaf litter and below fallen logs (Pedro Martins, personal communication).

Distribution. Known from Rio de Janeiro, southeastern Brazil (Fig. 27).