Xiruana jaboticabal, Oliveira, Luiz Fernando M. & Brescovit, Antonio D., 2015

Oliveira, Luiz Fernando M. & Brescovit, Antonio D., 2015, A taxonomic revision of the Neotropical spider genus Xiruana Brescovit 1997 (Araneae: Anyphaenidae, Anyphaeninae), Zootaxa 3980 (2), pp. 201-229 : 218

Xiruana jaboticabal new species

Figs 10 A–F; 16A

Type material. Male holotype from Jaboticabal (21°15’18”S; 48°19’19”W), São Paulo, Brazil, 1979, L. Miller leg., deposited in MCZ.

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. Males of Xiruana jaboticabal n. sp. resemble those of X. pocone n. sp. by the palp with an extremely long base of conductor of Anyphaeninae, distant from the ventral tegular process, but differ by the anterior and posterior branches of the retrolateral tibial apophysis being extremely separated, and by the inconspicuous rounded median tibial apophysis ( Figs 10 D–F).

Description. Male (Holotype). Coloration as in X. hirsuta . Total length 7.1, carapace length 3.0, width 2.5. Clypeus height 0.12. Eye diameters and interdistances: AME 0.18, ALE 0.14, PME 0.14, PLE 0.14; AME–AME 0.02, AME–ALE 0.04, PME–PME 0.16, PME–PLE 0.1, ALE–PLE 0.02. Chelicerae 1.9 long, with four promarginal teeth and five retromarginal denticles. Leg measurements: Leg I—femur 3.3/ patella 1.5/ tibia 4.2/ metatarsus 4.0/ tarsus 1.6/ total 14.6; II—3.3/ 1.4/ 3.4/ 3.1/ 1.0/ 12.2; III—2.4/ 1.0/ 1.6/ 2.5/ 0.7/ 8.2; IV—3.5/ 1.2/ 3.1/ 4.2/ 1.0/ 13.0. Leg spination: I—tibia v2-2 -0, p1-1-0, metatarsus v2 -0-0, p0, r0; II—tibia v2-2 -0, r0, metatarsus v2 -0-0, r0; III—tibia p1-1-1, r1-1-1, metatarsus p1-0-1; IV—tibia p1-1-1, r1-1-1. Palp: conductor of Anyphaeninae elongated; median apophysis long and curved in the apex ( Figs 10 A–F). Abdomen: length 4.1, epigastric furrow 0.8 from tracheal spiracle, spiracle 2.5 from base of spinnerets.

Female: Unknown.

Other material examined. Only the holotype.

Distribution. Known only from the type locality ( Fig. 16 A).

Figures

FIGURE 10. Xiruana jaboticabal n. sp.: A male left palp, ventral view; B same, retrolateral view; C same, median apophysis; D male palpal tibia, retrolateral view; E same, retrodorsal view; F same, dorsal view. Xiruana ajuricaba n. sp.: G female epigynum, ventral view; H same, dorsal view. Scale bars: A 0.4 mm; B 0.3 mm; C 0.1 mm; H 0.25 mm.

FIGURE 16. Known distribution of Xiruana species.