Stemmops guapiacu,

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

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Stemmops guapiacu

new species

Stemmops guapiacu  new species

Figs. 8, 9View FIGURES 5–9, 16View FIGURES 10–23, 25View FIGURE 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 215208View Materials)GoogleMaps  . 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 50483View Materials)GoogleMaps  .

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, 9View FIGURES 5–9).

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. 16View FIGURES 10–23), 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. 16View FIGURES 10–23), grey with a pale yellow spot above spinnerets, venter lighter.

Male. Unknown.

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