Scytodes ilhota, 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 : 43

Scytodes ilhota new species

Figs. 153–156

Scytodes lineatipes: Keyserling 1891: 163 , pl. 5, fig. 112 (only the male from Blumenau, misidentification).

Type material: Holotype: male from Morro do Baú [26°48'29" S; 48°57'19" W], Ilhota , Santa Catarina, Brazil, 4 February 1996, A.B. Kury, A.B. Bonaldo & R. Pinto da Rocha, deposited in MCN.

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

Diagnosis. Males of Scytodes ilhota n.sp. are distinguished from those of the remaining Neotropical Scytodes by the distal area of the bulb with a dorsal, truncated and concave region and a ventral sclerotized process ( Figs. 154–156 ).

Description. Male (Holotype, MCN). Carapace pale yellow with dark brown pattern, as shown on Fig. 153 . Chelicerae pale yellow with median longitudinal brown stripe. Pedipalps pale yellow with few ventral and prolateral brown marks. Labium and endites pale yellow. Sternum pale yellow with faint brown markings in front of each coxae. Legs pale yellow. Femora I-IV with ventral, longitudinal marks. Abdomen gray with black pattern ( Fig. 153 ). Total length 3.3. Carapace slightly domed, 1.7 long, 1.5 wide. Eye diameters: PME 0.14, ALE 0.14, PLE 0.14. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and ten slightly conspicuous stridulatory ridges. Labium 0.14 long, 0.18 wide. Sternum 0.94 long, 0.74 wide. Leg measurements: I: femur 3.4, patella 0.4, tibia 3.7, metatarsus 4.3, tarsus 0.7, total 12.5; II: 2.4, 0.4, 2.4, 2.7, 0.6, 8.5; III: 1.6, 0.4, 1.3, 1.6, 0.5, 5.4; IV: 2.3, 0.4, 2.0, 2.3, 0.5, 7.5. Palpal femur with stridulatory pick short and stout on triangular and projected socket. Cymbium with single strong distal spine ( Figs. 154–155 ). Bulb 0.48 long, medially constricted, with dorsal, truncated and concave distal region and a ventral sclerotized process ( Figs. 154–156 ). Abdomen 1.6 long, 1.3 wide, covered with slender hairs.

Female unknown.

Distribution. Atlantic Forest. Only known from the type locality, in the state of Santa Catarina.

Figures

FIGURES 153 – 159. 153 – 156. Scytodes ilhota n. sp. 153. Male habitus, dorsal. 154 – 156. Left male palp (154 prolateral, 155 retrolateral, 156 detail of distal region, dorsal). 157 – 159. Scytodes turvo n. sp. 157. Female habitus, dorsal. 158 – 159. Female epigynum (158 ventral, 159 dorsal) (SP = sclerotized process). Scale lines: 0.5 mm.