Aucana ramirezi, HUBER, 2000

HUBER, BERNHARD A., 2000, New World Pholcid Spiders (Araneae: Pholcidae): A Revision At Generic Level, Bulletin of the American Museum of Natural History 2000 (254), pp. 1-348 : 106-108

publication ID	https://doi.org/ 10.1206/0003-0090(2000)254<0001:NWPSAP>2.0.CO;2
persistent identifier	https://treatment.plazi.org/id/03ACD276-8F3D-FF82-FCA4-F9AF44063955
treatment provided by	Felipe
scientific name	Aucana ramirezi
status	sp. nov.

Treatment

Aucana ramirezi View in CoL , new species Figures 406 View Figs 409

TYPES: Male holotype, 43 9♀ paratypes from Elqui : 20 km N La Serena, km 491, Rt 5 (29°46'S, 71°20'W), Coquimbo, Chile GoogleMaps ; elev. 120 m, Nov. 12, 1993 (N. I. Platnick, K. Catley, M. Ramirez, R. T. Allen), in AMNH .

ETYMOLOGY: Named for the third collector.

DIAGNOSIS: Distinguished from the closely related A. platnicki by the more curved procursus (compare figs. 403, 407), from A. petorca by the stronger tip and proximal

apophysis of the procursus (compare figs. 407, 411); from other congeners also by the three tiny frontal cones on the male chelicerae (cf. fig. 400).

MALE (holotype): Total length 1.22, carapace width 0.56; leg 1: 4.23 (1.13+0.23 +1.13+1.26+0.48), tibia 2: 0.87, tibia 3: 0.69, tibia 4: 1.02; tibia 1 l/d: 17. Habitus as in A. platnicki (cf. fig. 395). Entire prosoma ochre-yellow, only carapace with broad, slightly darker Y mark; no thoracic groove; distance PME-ALE about 40% of PME diameter. Sternum without anterior humps. Chelicerae as in A. platnicki (cf. fig. 400). Palps in general as in A. platnicki , only procursus more curved (figs. 406 407). Legs monochromous ochre-yellow, no rings visible; legs without spines, without curved and vertical hairs (but many hairs missing); retrolateral trichobothrium of tibia 1 at 51%; tarsus 1 with ~ 7 pseudosegments. Opisthosoma ochre-gray, darker dorsally.

VARIATION: Tibia 1 in 4 males: 1.10 1.13. In two freshly molted paratypes, the opisthosoma has about six pairs of dark spots dorsally; in two paratypes there are faint dark rings on femora (subdistally) and tibiae (proximally and subdistally).

FEMALE: Total length (N = 8) 1.2 1.7 (x¯ = 1.5); tibia 1 (N = 7) 0.90 1.00 (x¯ = 0.98). In general very similar to male, but rings on legs usually well visible: on femora (subdistally) and tibiae (proximally and subdistally). Epigynum light brown, very simple externally, with median duct(?) usually well visible from outside (fig. 408); internally with transparent median sac (receptacle?) (fig. 409; differences to A. platnicki may be mostly due to minimal differences in angle of view).

DISTRIBUTION: Known only from type locality.

MATERIAL EXAMINED: CHILE: Coquimbo: Choapa: Elqui: types above.

Aucana petorca , new species Figures 410 413