Stemmops carajas, Santanna & Rodrigues, 2018

Santanna, Manoela & Rodrigues, Everton Nei Lopes, 2018, Five new species and new records of the spider genus Stemmops (Araneae, Theridiidae, Spintharinae) from Brazil, Zootaxa 4524 (2), pp. 174-186 : 178

Stemmops carajas new species

Figs. 5, 6 , 13, 14 , 25

Type material. Holotype. BRAZIL: Pará, Parauapeba, Flona Carajás (Cave N 5S-11), 6°6’18”S– 50°7’47”W, 14– 23.X.2009, R. Andrade & I. Cizauskas leg., 1M ( IBSP 174290 ) . Paratype. BRAZIL: same data as the holotype (Cave N 3-0022), 1F ( IBSP 174310 ) .

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

Diagnosis. Males are similar to Stemmops servus Levi, 1964 (see Levi 1964, fig. 9) by the embolus coiled, long and filiform, and presence of embolic basal process ( Fig. 5 ), but differ from this species by the embolus longer, with approximately five loops, and by the embolus base smaller ( Fig. 5 ). Females resemble Stemmops servus Levi, 1964 (see Levi 1964, fig. 12) by the presence of two spermathecae, but differ by the shape of spermathecae oval, and spermathecae less separated from each other, in ventral view ( Fig. 6 ), and ventral epigynum with two copulatory openings ( Fig. 6 ).

Description. Male holotype (from Flona Carajás, IBSP 174290): Total length 1.49. Carapace: length 0.65, width 0.58. Clypeus height: 0.12. Sternum: length 0.37, width 0.37. Chelicerae: length 0.10, width 0.08. Abdomen: length: 0.71, width 0.46, height 0.52. Leg formula. (only femura leg I, II). Segment length (I/II/III/IV): femora 0.88/0.67; patellae+tibiae (not available); metatarsi+tarsi (not available). Palp: femora 0.21, patellae 0.08, tibiae 0.08, cymbium 0.25. AME, PLE and PME biggest, ALE smaller. PME separated from each other by 0.06. Carapace circular ( Fig. 13 ), brown with lateral dark brown dots. Clypeus concave, laterally. Chelicerae yellow. Labium subtriangular, dark brown. Endites yellow. Ocular region dark except between PME. Sternum dark brown, with dark dots. Legs pale yellow, with dark longitudinal bands on the sides, except femora of all legs that are darkened in all its extension. Abdomen oval ( Fig. 13 ), dorsally yellow and in posterior area dark brown, venter darkened.

Female paratype (from Flona Carajás, IBSP 174310): Total length 1.68. Carapace: length 0.71, width 0.71. Clypeus: height 0.10. Sternum: length 0.50, width 0.42. Chelicerae: length 0.18, width 0.10. Abdomen: length 1.00, width 0.69, height 0.67. Leg formula IV/III/II/I Segment length (I/II/III/IV): femora 0.90/0.67/0.63/0.86; patellae+tibiae 0.94/0.75/0.60/0.94; metatarsi+tarsi (unavailable leg I) 0.88/0.81/1.09, total: 1.84/2.31/2.05/2.89. Palp: femora 0.18, patellae 0.08, tibiae 0.10, tarsi 0.33. PLE and AME biggest, PME separated from each other by 0.02. Carapace circular ( Fig. 14 ), brown with lateral dark brown dots. Clypeus concave, laterally. Chelicerae yellow. Labium subtriangular, dark brown. Endites yellow. Ocular region dark except between PME. Sternum dark brown, with dark dots. Legs pale yellow, except femur with longitudinal dark bands at the sides. Abdomen oval ( Fig. 14 ), dorsally dark, ventrally pale yellow.

Distribution. Brazil (Pará, Fig. 25 , recorded only from caves).

Figures

FIGURE 25. Distribution of the new species of genus Stemmops in Brazil: Stemmops carajas new species, Stemmops carauari new species and Stemmops guapiacu new species.

FIGURES 5–9. Stemmops carajas new species: 5, Male: Palp, ventral. 6, Female: Epigynum, ventral. Stemmops pains new species: 7, Male: Palp, ventral. Stemmops guapiacu new species: Female: 8, Epigynum, ventral, 9, Dorsal, clarified. Scale bars, 0.25 mm.

FIGURES 10–23. Body, dorsal view. Stemmops murici new species: 10, Male, 11, Female. Stemmops carauari new species: 12, Male. Stemmops carajas new species: 13, Male, 14, Female. Stemmops pains new species: 15, Male. Stemmops guapiacu new species: 16, Female. Stemmops belavista Marques & Buckup, 1996: 17, Female. Stemmops carius Marques & Buckup, 1996: 18, Female, 19, Male. Stemmops servus Levi, 1964: 20, Male, 21, Female. Stemmops vicosa Levi, 1964: 22, Male, 23, Female. Scale bars, 0,5mm.