Scytodes antonina, 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: 28-29

publication ID

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

persistent identifier

http://treatment.plazi.org/id/174E87B6-FFB3-B569-98D6-F91CFC294144

treatment provided by

Plazi

scientific name

Scytodes antonina
status

new species

Scytodes antonina   new species

Figs. 100–105 View FIGURES 94 – 105. 94 – 96

Type material: Holotype: male from, Reserva do Rio Cachoeira, Antonina   [25 ° 26 ' S; 48 ° 43 ' W], Paraná, Brazil, 13–19 April 2004, H. Höfer et al., deposited in IBSP 116695.

Paratypes: BRAZIL. São Paulo: Ilhabela [23 ° 46 ' S; 45 ° 21 ' W] (Parque Estadual de Ilhabela), 1 Ƥ, 9–15 October 2001, Equipe Biota ( IBSP 92321); Iporanga [24 ° 32 ' S; 48 ° 40 ' W] (Parque Estadual Turístico do Alto Ribeira, Gruta do Ouro Grosso), 1 Ƥ, 8–15 November 2001, Equipe Biota ( IBSP 38420). Paraná: Antonina   [25 ° 26 ' S; 48 ° 43 ' W] (Reserva do Rio Cachoeira), 23 4 Ƥ, 13–19 April 2004, H. Höfer et al. ( IBSP 116691–116694); Morretes [25 ° 26 ' S; 48 ° 55 ' W] (Parque Estadual do Marumbi), 1 Ƥ, 6–9 April 1999, R. Pinto da Rocha & A. Chagas Jr. ( MZSP 18707); ( IAPAR, Estação 2), 1 Ƥ, 28–29 October 1995, A B. Bonaldo ( MCN 27019 View Materials ).

Other material examined: BRAZIL. São Paulo: Santos [23 ° 51 ' 53.1 " S; 46 ° 18 ' 15.7 " W] (Vale do Rio Jurubatuba   ), 2 Ƥ, March – December 2007, A.A. Nogueira ( IBSP 92521, 92515); Ilhabela [23 ° 46 ' S; 45 ° 21 ' W] (Parque Estadual de Ilhabela), 2 Ƥ, 9–15 October 2001, Equipe Biota ( IBSP 92319, 92320); Paraná: Antonina   [25 ° 26 ' S; 48 ° 43 ' W] (Reserva do Rio Cachoeira), 2 Ƥ, 13–19 April 2004, H. Höfer et al. ( IBSP 116696, 116697).

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

Diagnosis. The males of Scytodes antonina   n.sp. are distinguished from those of the remaining Neotropical Scytodes   by the palp with a dorsal, oblique hyaline membrane ( Figs. 101–102 View FIGURES 94 – 105. 94 – 96 ) and a retrolateral, long, sclerotized process ( Figs. 102–103 View FIGURES 94 – 105. 94 – 96 ). The females are distinguished by a single, very large and rounded hyaline pocket with lateral, oval, sclerotized areas ( Fig. 105 View FIGURES 94 – 105. 94 – 96 ).

Description. Male (Holotype, IBSP 116695). Carapace pale orange with brown pattern as shown on Fig. 100 View FIGURES 94 – 105. 94 – 96 . Chelicerae pale orange with dorsal, longitudinal brown stripe. Pedipalps pale orange. Labium and endites pale yellow. Sternum cream colored with faint brown markings in front of each coxae. Legs yellow. Femur I- IV with ventral pair of longitudinal black stripes. Tibia I-IV with black extremities. Abdomen gray with black pattern ( Fig. 100 View FIGURES 94 – 105. 94 – 96 ). Total length 3.5. Carapace slightly domed, 1.7 long, 1.5 wide. Eye diameters: PME 0.16, ALE 0.14, PLE 0.14. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and inconspicuous stridulatory ridges. Labium 0.10 long, 0.20 wide. Sternum 0.92 long, 0.74 wide. Leg measurements: I: femur 3.6, patella 0.6, tibia 3.9, metatarsus 4.7, tarsus 0.5, total 13.3; II: 2.6, 0.5, 2.5, 3.0, 0.5, 9.1; III: 1.7, 0.4, 1.4, 1.7, 0.4, 5.6; IV: 2.4, 0.5, 2.2, 2.5, 0.6, 8.2. Palpal femur with stridulatory pick long and slender on rounded and projected socket. Cymbium with single, short distal spine ( Fig. 102 View FIGURES 94 – 105. 94 – 96 ). Bulb 0.70 long, medially constricted and slightly sinuous. Distal area with a dorsal, oblique hyaline membrane ( Figs 101–102 View FIGURES 94 – 105. 94 – 96 ) and longer retrolateral sclerotized process ( Figs. 102–103 View FIGURES 94 – 105. 94 – 96 ). Abdomen 1.7 long, 1.4 wide, covered with slender hairs.

Female (Paratype, IBSP 92321) Coloration pattern as in male. Total length 4.7. Carapace domed, 2.1 long, 1.9 wide. Eye diameters: PME 0.14, ALE 0.14, PLE 0.14. Lateral eyes on a tubercle. Chelicerae as in male. Labium 0.16 long, 0.28 wide. Sternum 1.04 long, 0.86 wide. Leg measurements: I: femur 2.7, patella 0.5, tibia 2.8, metatarsus 3.1, tarsus 0.6, total 9.7; II: 2.1, 0.5, 2.2, 2.6, 0.6, 8.0; III: 1.6, 0.5, 1.3, 1.6, 0.4, 5.4; IV: 2.2, 0.5, 2.0, 2.2, 0.6, 7.5. Palpal femur as in male. Abdomen 2.6 long, 2.4 wide, covered with slender hairs. Epigynum with slightly triangular epigynal pouch and narrow positioning ridges with slightly triangular foveas separated from each other by 3–4 times their width ( Fig. 104 View FIGURES 94 – 105. 94 – 96 ). Vulva with single, large, hyaline pocket with lateral, oval sclerotized areas and adjacent round spermathecae ( Fig. 105 View FIGURES 94 – 105. 94 – 96 ).

Variation. Three males: total length 3.2–3.5; femur I 3.5–3.6; bulb 0.70–0.72. Ten females: total length 3.9–5.2; carapace 1.8–2.2; femur I 2.0– 2.8.

Distribution. Atlantic Forest. Eastern states of São Paulo and Paraná.

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