Cybaeodes dosaguas, Ribera & de Mas, 2015

Ribera, Carles & Mas, Eva De, 2015, Description of three new troglobiontic species of Cybaeodes (Araneae, Liocranidae) endemic to the Iberian Peninsula, Zootaxa 3957 (3), pp. 313-323 : 319

Cybaeodes dosaguas n. sp.

Figs. 1 , 7–8 , 17–18

Type material. Holotype: 1 ♀ from Cova de les Meravelles, municipality of Dos Aguas, València, Spain, Sendra & Montagud leg., XII.2000 (CRBA-UB 190-5032) . Paratype: 1 ♀ from same locality and date (CRBA-UB 190- 5033) . Both specimens were caught by a pitfall trap with a mixture of glycerin and beer.

Etymology. The species epithet is a noun in apposition derived from the type locality Dos Aguas, a small village of 400 inhabitants in the province of València ( Spain).

Diagnosis. Male unknown. The females differ from those of other Cybaeodes species by the shape of the epigyne ( Figs. 7 , 17 ) and by the shape and disposition of the insemination ducts of the vulva ( Fig. 8 ). Two strongly sclerotized semicircular lateral lobes in epigyne as well as the general arrangement of vulval and other epigynal structures are similar in C. magnus n. sp., and C. dosaguas n. sp. However, these species can be easily differentiated by the conformation of the insemination ducts, which are relatively thin and tightly coiled in C. dosaguas ( Fig 8 ), but thicker and loosely coiled in C. magnus ( Fig. 10 ).

Description of the female (holotype). Coloration: Prosoma ( Fig. 18 ) yellowish brown in dorsal view, with anterior margin darker. Fovea dark brown. Chelicera brownish. Sternum and appendices pale yellowish brown, with apical segments slightly darker. Opistosoma pale yellowish. Prosoma: Longer than wide in dorsal view. Fovea clearly visible, radial grooves scarcely marked. Cephalic region not differentiated from the rest of the prosoma. Sternum and labium shows the same morphology as C. indalo n. sp. Eyes clearly reduced and depigmented ( Fig. 18 ). Eye size (diameter): LP 0.1, MP 0.07, LA 0.08, MA 0.07. Appendages: Robust and prominent chelicerae. Promargin with three teeth on basal position, basal tooth smallest and middle tooth largest. Retromargin with two small teeth on apical position. Long and robust fangs. Long legs with deeply notched trochanters. Tarsal claws with five teeth and five pairs of tenent hairs on the tarsal tips. Leg formula 4123. Opisthosoma: With light pilosity on dorsal side. Cylindrical anterior spinnerets separated at their base by approximately their diameter. Posterior spinnerets also cylindrical, thinner than the anterior ones and slightly longer. Epigyne ( Figs. 7 , 17 ): Triangular genital area bounded at upper part by a sclerotized semicircular (almost triangular) anterior rim longer than in C. indalo . Two lateral oval lobes strongly sclerotized located in the posterior half of the genital area and leaving a rectangular median field slightly elevated. These two lateral lobes show two small sclerotized pits located in external margins. Vulva ( Fig 8 ): Thick insemination ducts located at the base of lateral lobes. Insemination ducts strongly convoluted describing two spirals to reach the spermathecae. In anterior part of lateral lobes and above the insemination ducts are two sclerotized helmet-shaped structures. Measurements: PL = 3.3; PW = 2.35; OL = 3.85; OW = 2.5; total body length = 7.15.

Figures

FIGURE 1. Distribution of the genus Cybaeodes in the western Mediterranean.

FIGURES 2 – 10. Cybaeodes indalo n. sp. 2: Epigynum ventral view, 3: Vulva dorsal view, 4: male palp dorsal view, 5: male palp ventral view, 6: male palp retrolateral view. Cybaeodes dosaguas n. sp. 7: Epigynum ventral view, 8: Vulva dorsal view. Cybaeodes magnus n. sp. 9: Epigynum ventral view, 10: Vulva dorsal view.

FIGURES 17 – 22. Cybaeodes dosaguas n. sp. 17: Epigynum ventral view, 18: female habitus. Cybaeodes magnus n. sp. 19: Epigynum ventral view, 20: female habitus. 21: Cybaeodes mallorcensis epigynum ventral view. 22: Cybaeodes magnus n. sp. Eyes frontal view.