Stemmops guapiacu, 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 : 181

Stemmops guapiacu new species

Figs. 8, 9 , 16 , 25

Type material. Holotype. BRAZIL: Rio de Janeiro, Cachoeiras de Macacu, Reserva Ecológica de Guapiaçu , 22°25’S– 42°44’W, 08.XI.2001, Equipe Biota leg., night manual collection, 1F ( IBSP 215208 ) . Paratype. BRAZIL: Paraíba, Areia, Reserva do Pau Ferro , 06°57’S– 35°44’W, 23–29.IX.1999, A. D. Brescovit leg., pitfalltrap, 1F ( IBSP 50483 ) .

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

Diagnosis. The female of Stemmops guapiacu new species resembles that of S. cryptus Levi, 1955 (see Levi 1955, figs. 23, 24), by the presence of two oval spermathecae in ventral view, but differ by the shape of fertilization ducts longs, overlaps the copulatory ducts in the median portion ( Figs. 8, 9 ).

Description. Female paratype (from Reserva Ecológica Guapiaçu, IBSP 215208): Total length 1.36. Carapace: length 0.56, width 0.48. Clypeus: height 0.06. Sternum: length 0.18, width 0.2. Chelicerae: length 0.16, width 0.08. Abdomen: length 0.56; width 0.52; height 0.44. Leg formula IV/I/II/III. Segment length (I/II/III/IV): femora 0,54/0,42/0,31/0,52; patellae+tibiae 0,63/0,50/0,44/0,67; metatarsi+tarsi 0,63/0,0,56/0,58/0,71; total: 1,80/ 1,49/1,34/1,91. Palp: femora 0.08, patellae 0.06, tibiae 0.10, tarsi 0.06. ALE smaller. PME separated from each other by 0.06. Carapace oval ( Fig. 16 ), pale yellow, darkened in median portion after PME and laterals, Clypeus concave, laterally. Chelicerae yellow. Labium subtriangular yellow. Endites yellow. Ocular region dark except between PME. Sternum yellow, with lateral dark dots. Legs pale yellow. Abdomen oval ( Fig. 16 ), grey with a pale yellow spot above spinnerets, venter lighter.

Male. Unknown.

Distribution. Brazil (Paraíba and Rio de Janeiro, Fig. 25 )

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.