Orchestina aragua Izquierdo, 2017

Izquierdo, Matías Andrés & Ramírez, Martín J., 2017, Taxonomic Revision Of The Jumping Goblin Spiders Of The Genus Orchestina Simon, 1882, In The Americas (Araneae: Oonopidae), Bulletin of the American Museum of Natural History 2017 (410), pp. 1-1 : 1-

Orchestina aragua Izquierdo , new species

Figures 53 , 59A–C , 63G, H , map 7

TYPE: Male holotype from Venezuela: Aragua: Maracay: Rancho Grande, 1200 m (10.40167°, -67.58500°), Aug. 01, 1987, to Aug. 10, 1987, Bordon, Peck, deposited in AMNH, PBI_OON 1684.

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

DIAGNOSIS: Males resemble those of O. saltabunda by the presence of two conical projections on the internal margin of chelicerae, but in O. aragua these are strong, well separated (fig. 53C) rather than adjacent. The copulatory bulb is also different, in O. aragua the embolus is longer and the sperm duct takes a different course.

MALE (PBI_OON 1684): Total length 1.00. CEPHALOTHORAX (fig. 53): Carapace orange, almost triangular in dorsal view (fig. 53A). Clypeus slightly curved downward in front view, vertical in lateral view (fig. 53C, D). Sternum wider than long. Chelicerae anterior face with basal conical projections, mesal margin with two strong projections, proximal larger than distal one. Labium elongated, hexagon. ABDOMEN: Pale white. GENITA- LIA: Bulb tapering apically; embolus with ventral rounded projection in retrolateral view; sperm duct coiled, with many loops (figs. 59A–C, 63G, H).

FEMALE: Unknown.

DISTRIBUTION: Known only from the type locality in Venezuela (Aragua, map 7).

OTHER MATERIAL EXAMINED: None.

Figures

FIGURE 53. Orchestina aragua, cephalothorax of male holotype. A. Dorsal. B. Anterolateral. C. Anterior; arrows point to projections on the internal margin of chelicerae. D. Lateral. Scale bars: 0.2 mm. (PBI_OON 1684).

FIGURE 59. Orchestina spp., palps of males. A–C. O. aragua. D–F. O. bolivar. G–I. O . ranchogrande. Arrows pointing to the rounded projection near the embolus base. Scale bars: 0.2 mm. (PBI_OON 1684, 1480, 1665).

FIGURE 63. Orchestina spp., drawings of male palps. A, B. O . zingara, holotype. C, D. O . cali, holotype. E, F. O . saltabunda, syntype. G, H. O. aragua, holotype. I, J. O . bolivar, holotype. K, L. O . ranchogrande, holotype. A, C, G. Prolateral. E, I, K. Retrolateral (images have been flopped for consistency). B, D, F, J, L. Dorsal. Scale bars: 0.1 mm. (PBI_OON 30709, 42225, 42748, 1682, 1684, 1665).