Stemmops carajas Santanna & Rodrigues 2018, new species
Creators: name: Santanna, Manoela
name: Rodrigues, Everton Nei Lopes
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theridiidae
Stemmops
Stemmops carajas

description: 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).
description: Published as part of Santanna, Manoela & Rodrigues, Everton Nei Lopes, 2018, Five new species and new records of the spider genus Stemmops (Araneae, Theridiidae, Spintharinae) from Brazil, pp. 174-186 in Zootaxa 4524 (2) on page 178, DOI: 10.11646/zootaxa.4524.2.2, http://zenodo.org/record/2610417