Wulfila xilitlensis, Rivera-Quiroz & Álvarez-Padilla, 2019

Rivera-Quiroz, F. Andrés & Álvarez-Padilla, Fernando, 2019, Description of five new Wulfila (Araneae, Anyphaenidae) species from Mexico with comments on the taxonomy of the genus, Zootaxa 4712 (2), pp. 269-289 : 274-276

Wulfila xilitlensis spec. nov.

Figures 4–5

Type material: Holotype ♀: MEXICO: San Luis Potosí: Xilitla, Xilitla City near Las Pozas (21°23’50’’N, 98°59’38’’W, 685 m). Nov. 14–18, 2011, R. S. González-Contreras leg. ( CNAN-T01349 ).

Etymology: The species epithet is a latinized derivation of the type locality.

Diagnosis: Wulfila xilitlensis spec. nov. differs from W. albus ( Brescovit 1997a: figs 20–21) by having small accessory bulbs (AB) on the Cd anterior to the spermatheca, and having S as wide as the Cd ( Figs 4e ; 5 a–b); and from W. luisi spec. nov. by having shorter AB directed posteriorly instead of ventrally ( Figs 5 a–b; 8e–f).

Description: Male. Unknown. Female: Total length 5.0. Cephalothorax: length 2.0; width 1.50. Carapace glabrous, without pattern, thoracic groove very difficult to see ( Fig. 4a ). Sternum glossy, color pale yellow. Precoxal triangles present, more visible on coxae III–IV sightly reddish ( Fig. 4c ). Endites same color as sternum, labium light brown, longer than wide, labium length ca. 1/2 of endites. Chelicera: width 0.30, length 0.77, color similar to the cephalic region, five promarginal and eight retromarginal teeth; fang length 0.35. Eyes: AER straight, PER straight in dorsal view ( Fig. 4a ); ALE almost twice as big as AME; posterior eyes subequal. Clypeus about 1.5 diameter of AME. Abdomen:pale yellow, slightly darker near the spinnerets; dorsal surface without markings; lateral surface with one longitudinal dark mark near epigastric furrow ( Fig. 4b ); ventral surface with two darker spots, one posteri- or to the epigastric furrow and another anterior to the tracheal spiracle ( Fig. 4c ). Legs: light yellow, leg I and II with several pairs of ventral macrosetae on tibiae (10 and 7, respectively) and metatarsi (8 and 5, respectively); length: I 14.25; II 9.73; III 6.27; IV 10.65; formula I–IV–II–III. Pedipalp length 3.10. Epigyne red, with semi-transparent cuticle ( Fig. 4d ). Vulva: Cd as long and almost as wide as the S with a small AB before entering the spermatheca. Fd long and narrow, projecting anteriorly ( Fig. 4e ; 5a, b ).

Distribution: Known only from the type locality ( Fig. 15a ).

Biology: The specimen was collected directly from the vegetation in a tropical forest remnant

Figures

FIGURES 4a–e. Wulfila xilitlensis spec. nov., female. Habitus: a—dorsal, b—lateral, c—ventral. Epigyne: d—ventral, e—dorsal (cleared). Scale bars: a–c = 0.5 mm, d–e = 0.1 mm.

FIGURES 5a–b. Wulfila xilitlensis spec. nov. Epigyne: a—dorsal, b—ventral. Scale bar: a–b = 0.1 mm.

FIGURE 15. Distribution map of the new Wulfila species. Inset a—showing species collected in Xilitla, San Luis Potosí: ● W. conchamonile spec. nov., and ▲ W. xilitlensis spec. nov. Inset b—showing species collected in Atotonilco and Xamaticpac, Veracruz: ♦ W. luisi spec. nov., + W. unguis spec. nov., and ★ W. phantasma spec. nov. Scale bars: a = 50 km, b = 10 km.