Scytodes domhelvecio, 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: 18

publication ID

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

persistent identifier

http://treatment.plazi.org/id/174E87B6-FFB9-B564-98D6-FED6FE94410C

treatment provided by

Plazi

scientific name

Scytodes domhelvecio
status

new species

Scytodes domhelvecio   new species

Figs. 59–61 View FIGURES 52 – 61. 52 – 55

Type material: Holotype: female from Parque Estadual do Rio Doce [19 ° 29 '– 19 ° 48 ' S; 42 ° 28 '– 42 ° 38 ' W], Marliéria   , Minas Gerais, Brazil, 1–10 September 2003, Equipe Biota, deposited in IBSP 92403.

Paratypes: BRAZIL. Minas Gerais: Marliéria   , (Parque Estadual do Rio Doce) [19 ° 29 '– 19 ° 48 ' S; 42 ° 28 '– 42 ° 38 ' W], 2 Ƥ, 1–10 September 2003, Equipe Biota ( IBSP 92441, MZSP 28957). Espírito Santo: Linhares (Reserva Florestal Vale do Rio Doce) [19 ° 25 ' S; 40 °04' W], 1 Ƥ, June 1997, J. Raizer ( IBSP 14869).

Other material examined. BRAZIL. Minas Gerais: Alto Caparaó (Parque Nacional do Caparaó) [20 ° 26 ' S; 41 ° 52 ' W], 2 Ƥ, 1–7 May 2002, Equipe Biota ( IBSP 92298; 92300).

Etymology. The specific name honours the Archbishop Dom Helvécio Gomes de Oliveira for his efforts to preserve the Rio Doce area that culminated with the creation of the Vale do Rio Doce State Park in 1944.

Diagnosis. Females of Scytodes domhelvecio   n.sp. resemble those of S. caratinga   n.sp. by the ridged positioning ridges ( Figs. 57, 60 View FIGURES 52 – 61. 52 – 55 ) and by the round spermathecae on short stalks adjacent to hyaline pockets ( Figs. 58, 61 View FIGURES 52 – 61. 52 – 55 ). They are distinguished by the larger, rounded hyaline pockets, medially touching each other and by the small, slightly rounded, lateral sclerotized area ( Fig. 61 View FIGURES 52 – 61. 52 – 55 ).

Description. Male. unknown.

Female (Holotype, IBSP 92403). Carapace very pale orange with brown pattern as shown on Fig. 59 View FIGURES 52 – 61. 52 – 55 . Chelicerae pale orange with dorsal, longitudinal brown stripe. Pedipalps yellow with scattered brown markings. Labium and endites pale yellow. Sternum pale yellow with brown markings in front of each coxae. Legs yellow. Femur I –IV with ventral pair of longitudinal brown stripes. Metatarsi with scattered brown markings. Abdomen whitish gray with very faint brown pattern ( Fig. 59 View FIGURES 52 – 61. 52 – 55 ). Total length 3.8. Carapace domed, 1.8 long, 1.6 wide. Eye diameters: PME 0.10, ALE 0.10, PLE 0.12. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and five stridulatory ridges. Labium 0.08 long, 0.18 wide. Sternum 0.96 long, 0.80 wide. Leg measurements: I: femur 2.4, patella 0.4, tibia 2.1, metatarsus 2.1, tarsus 0.5, total 7.5; II: 2.0, 0.4, 1.9, 1.5, 0.5, 6.3; III: 1.3, 0.4, 1.0, 1.4, 0.5, 4.6; IV: 2.0, 0.4, 1.6, 1.9, 0.5, 6.4. Palpal femur with stridulatory pick short and stout on triangular and projected socket. Epigynum with ridged positioning ridges separated from each other by twice their width ( Fig. 60 View FIGURES 52 – 61. 52 – 55 ). Vulva with small, round spermathecae adjacent to large, rounded hyaline pockets, touching each other and with a small slightly rounded lateral sclerotized area ( Fig. 61 View FIGURES 52 – 61. 52 – 55 ). Abdomen 2.0 long, 1.5 wide, covered with slender hairs.

Variation. Five females: total length 3.4–3.8; carapace 1.8 –2.0; femur I 2.2–2.4.

Distribution. Transition area between Atlantic Forest and Cerrado. Eastern state of Minas Gerais to Espírito Santo.

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