Stemmops carajas,

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

publication ID

https://doi.org/10.11646/zootaxa.4524.2.2

publication LSID

lsid:zoobank.org:pub:F904B4DB-8F5B-46ED-9973-3A1D53BCFC6E

persistent identifier

http://treatment.plazi.org/id/03AD0F3C-D80C-FF89-FF37-651DEBAAE58C

treatment provided by

Plazi

scientific name

Stemmops carajas
status

new species

Stemmops carajas  new species

Figs. 5, 6View FIGURES 5–9, 13, 14View FIGURES 10–23, 25View FIGURE 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 174290View Materials)GoogleMaps  . Paratype. BRAZIL: same data as the holotype (Cave N 3-0022), 1F ( IBSP 174310View Materials)GoogleMaps  .

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. 5View FIGURES 5–9), but differ from this species by the embolus longer, with approximately five loops, and by the embolus base smaller ( Fig. 5View FIGURES 5–9). 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. 6View FIGURES 5–9), and ventral epigynum with two copulatory openings ( Fig. 6View FIGURES 5–9).

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. 13View FIGURES 10–23), 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. 13View FIGURES 10–23), 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. 14View FIGURES 10–23), 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. 14View FIGURES 10–23), dorsally dark, ventrally pale yellow.

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

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theridiidae

Genus

Stemmops