Scytodes sincora, 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: 8-10

publication ID

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

persistent identifier

http://treatment.plazi.org/id/174E87B6-FFAF-B57C-98D6-FA11FAC14236

treatment provided by

Plazi

scientific name

Scytodes sincora
status

new species

Scytodes sincora   new species

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

Type material. Holotype: Male from Floresta Nacional Contendas do Sincorá   [13 ° 46 '– 14 °00' S; 41 °03'– 41 ° 10 ' W], Contendas do Sincorá   , Bahia, Brazil, October 2007 – November 2008, Y.G. Santos, deposited in IBSP 116090.

Paratypes: BRAZIL: Bahia: Contendas do Sincorá   (Floresta Nacional Contendas do Sincorá   ) [13 ° 46 '– 14 °00' S; 41 °03'– 41 ° 10 ' W], 63 7 Ƥ, October 2007 – November 2008, Y.G. Santos ( IBSP 116079 –116081, 116087, 116089, MZSP 28953, 28954).

Other material examined. BRAZIL: Bahia: Contendas do Sincorá   (Floresta Nacional Contendas do Sincorá   ) [13 ° 46 '– 14 °00' S; 41 °03'– 41 ° 10 ' W], 133 28 Ƥ, October 2007 – November 2008, Y.G. Santos ( IBSP 116091–116120)

Etymology. The specific name is a noun in apposition that refers to the type locality.

( Fig. 23–25 View FIGURES 22 – 31. 22 – 27 ). They are distinguished from S. yssaiapari   and S. tyaiamiri   by the longer sclerotized hook arising from a prominent hump ( Fig. 24 View FIGURES 22 – 31. 22 – 27 ) and from Scytodes tapacura   n.sp. by the very wide retrolateral keel ( Figs. 24–25 View FIGURES 22 – 31. 22 – 27 ). The females resemble those of Scytodes tapacura   n.sp. ( Fig. 6 View FIGURES 1 – 9. 1 – 6 ), S. yssaiapari   ( Rheims & Brescovit 2006: 302, fig. 26) and S. tyaiamiri Rheims & Brescovit 2006: 302   , fig. 30) by the vulva with small spermathecae on long stalks, adjacent to large hyaline pockets ( Fig. 27 View FIGURES 22 – 31. 22 – 27 ). They are distinguished from Scytodes tapacura   n.sp. and S. yssaiapari   by the conical hyaline pockets and from S. tyaiamiri   by the shorter spermathecae and larger hyaline pockets ( Fig. 27 View FIGURES 22 – 31. 22 – 27 ).

Description. Male (Holotype, IBSP 116090) Carapace pale orange with brown pattern as shown on Fig. 22 View FIGURES 22 – 31. 22 – 27 . Chelicerae pale orange with dorsal, longitudinal brown stripe. Pedipalps pale orange. Labium and endites pale orange. Sternum cream colored with slightly darker margins. Legs pale orange. Femur I –IV with ventral pair of longitudinal brown stripes. Tibia I –IV with black distal extremities. Abdomen gray with black pattern ( Fig. 22 View FIGURES 22 – 31. 22 – 27 ). Total length 3.5. Carapace slightly domed, 1.8 long, 1.4 wide. Eye diameters: PME 0.12, ALE 0.12, PLE 0.12. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and inconspicuous stridulatory ridges. Labium 0.18 long, 0.22 wide. Sternum 0.90 long, 0.70 wide. Leg measurements: I: femur 3.0, patella 0.5, tibia 3.5, metatarsus 3.7, tarsus 0.5, total 11.2; II: 2.2, 0.5, 2.3, 2.7, 0.4, 8.1; III: 1.5, 0.4, 1.3, 1.5, 0.3, 5.0; IV: 2.2, 0.5, 2.1, 2.3, 0.5, 7.6. Palpal femur with stridulatory pick long and slender with triangular and projected socket. Cymbium with pair of strong distal spines ( Fig. 23–24 View FIGURES 22 – 31. 22 – 27 ). Bulb 0.90 long, medially constricted and with a prominent hump. Distal area with large prolateral keel ( Fig. 23 View FIGURES 22 – 31. 22 – 27 ) and retrolateral long and strong sclerotized hook and narrow retrolateral keel ( Figs. 24–25 View FIGURES 22 – 31. 22 – 27 ). Abdomen 1.7 long, 1.1 wide, covered with slender hairs.

Female (Paratype, IBSP 116089). Coloration pattern as in male. Total length 4.1. Carapace domed, 2.1 long, 1.8 wide. Eye diameters: PME 0.12, ALE 0.12, PLE 0.10. Lateral eyes on a tubercle. Chelicerae as in male. Labium 0.18 long, 0.22 wide. Sternum 0.90 long, 0.80 wide. Leg measurements: I: femur 1.9, patella 0.5, tibia 2.2, metatarsus 2.5, tarsus 0.5, total 7.6; II: 1.5, 0.5, 1.7, 1.9, 0.4, 6.0; III: 1.1, 0.4, 1.0, 1.2, 0.4, 4.1; IV: 1.6, 0.5, 1.7, 1.7, 0.5, 6.0. Palpal femur as in male. Epigynum with irregular positioning ridges, separated from each other by their width ( Fig. 26 View FIGURES 22 – 31. 22 – 27 ). Vulva with small spermathecae with long stalks adjacent to conical hyaline pockets with very small sclerotized areas just bellow the tip of the pocket ( Fig. 27 View FIGURES 22 – 31. 22 – 27 ). Abdomen 2.0 long, 2.0 wide, as in male.

Variation. Ten males: total length 2.6–3.4; carapace 1.4–1.8; femur I 2.6–3.2; bulb 0.8–0.9. Ten females: total length 3.4–4.5; carapace 1.9–2.2; femur I 1.8–2.2.

Distribution. Caatinga. Only known from the type locality, in the northeastern state of Bahia.

IBSP

Instituto Biologico de Sao Paulo

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Scytodidae

Genus

Scytodes