Scytodes una, Rheims, Cristina A. & Brescovit, Antonio D., 2009

Rheims, Cristina A. & Brescovit, Antonio D., 2009, New additions to the Brazilian fauna of the genus Scytodes Latreille (Araneae: Scytodidae) with emphasis on the Atlantic Forest species, Zootaxa 2116, pp. 1-45: 10-11

publication ID

http://doi.org/ 10.5281/zenodo.187984

persistent identifier

http://treatment.plazi.org/id/174E87B6-FFA1-B57F-98D6-FA64FAA2458E

treatment provided by

Plazi

scientific name

Scytodes una
status

new species

Scytodes una   new species

Figs. 28–31 View FIGURES 22 – 31. 22 – 27

Type material. Holotype: male from Reserva Biológica de Una   , Una   [15 ° 18 ' S; 39 °04' W], Bahia, Brazil, 14 April 1998, A D. Brescovit et al., deposited in IBSP 18250.

Paratypes: BRAZIL: Bahia: Una   [15 ° 18 ' S; 39 °04' W] (Reserva Biológica de Una   ), Bahia, 23, 15– 28 November 2000, A D. Brescovit et al. ( IBSP 53674; 53670). Rio de Janeiro: Nova Friburgo [22 ° 16 ' S; 42 ° 31 ' W] (Amparo), 13, 20 December 1993, A.B. Kury ( MNRJ 13066).

Other material examined. BRAZIL. Bahia: Una   [15 ° 18 ' S; 39 °04' W] (Reserva Biológica de Una   ), 33, 15– 28 November 2002, A D. Brescovit et al. ( IBSP 53669; 53667; 46875).

Etymology. The specific name is a noun in apposition and refers to the type locality of the holotype.

Diagnosis. The males of S. una   n.sp. are distinguished from those of the remaining Neotropical Scytodes   by the presence of a ventral, hyaline lamina at the base of a slightly curved sclerotized process ( Figs. 30–31 View FIGURES 22 – 31. 22 – 27 ).

Description. Male (Holotype, IBSP 18250). Carapace orange with brown pattern, as shown on fig. 28. Chelicerae pale yellow with longitudinal brown stripe. Pedipalps pale yellow with prolateral and dorsal longitudinal brown stripe. Labium orange. Endites cream colored with brown margins. Sternum cream colored with brown margins in front of each coxae. Legs orange, except patella I brown. Femora I –IV with several longitudinal brown stains. Abdomen whitish gray with black pattern ( Fig. 28 View FIGURES 22 – 31. 22 – 27 ). Total length 3.8. Carapace slightly domed, 1.8 long, 1.6 wide. Eye diameters: PME 0.14, ALE 0.14, PLE 0.14. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and inconspicuous stridulatory ridges. Labium 0.12 long, 0.20 wide. Sternum 0.96 long, 0.80 wide. Leg measurements: I: femur 5.2, patella 0.5, tibia 5.7, metatarsus 7.4, tarsus 0.8, total 19.6; II: 3.8, 0.5, 3.9, 4.4, 0.7, 13.3; III: 2.3, 0.5, 1.9, 2.5, 0.5, 7.7; IV: 3.5, 0.5, 3.3, 3.7, 0.6, 11.6. Palpal femur with short and stout stridulatory pick with rounded and slightly projected socket. Cymbium with one strong distal spine ( Figs. 29–30 View FIGURES 22 – 31. 22 – 27 ). Bulb 0.56 long, slightly constricted medially and slightly bent ventrally. Distal region spoon-shaped with ventral hyaline lamina at the base of slightly retrolateral, curved, sclerotized process ( Figs. 30–31 View FIGURES 22 – 31. 22 – 27 ). Abdomen 1.8 long, 1.2 wide, covered with short, slender hairs. Female unknown.

Variation. Seven males: total length 3.2–4.2; carapace 1.8 –2.0; bulb 0.56–0.66.

Distribution. Atlantic Forest. Known from southern state of Bahia to northern state of Rio de Janeiro.

IBSP

Instituto Biologico de Sao Paulo

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Scytodidae

Genus

Scytodes