Metagonia globulosa, 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 : 73-76

publication ID	https://doi.org/ 10.1206/0003-0090(2000)254<0001:NWPSAP>2.0.CO;2
persistent identifier	https://treatment.plazi.org/id/03ACD276-8F1C-FFA2-FD58-FDCA41E23932
treatment provided by	Felipe
scientific name	Metagonia globulosa
status	sp. nov.

Treatment

Metagonia globulosa View in CoL , new species Figures 53 View Figs , 65 View Figs , 150 View Figs , 279 View Figs 290

TYPES: Male holotype, 23 5♀ paratypes from Rio Samiria (04°43'S, 74°18'W), Dept. Loreto, Peru GoogleMaps ; May 13 June 24, 1990 (T. Erwin et al.), in MUSM .

ETYMOLOGY: The species name is an adjective referring to the globular opisthosoma.

DIAGNOSIS: Easily distinguished from congeners by the globular abdomen (fig. 279), the presence of a thoracic groove (fig. 280), the short legs, the tripartite clypeal apophysis in the male (fig. 285), the shape of the procursus (figs. 286 287), and the female internal genitalia (fig. 290). Metagonia furcata , n. sp., is probably the closest known relative, but is easily distinguished by the habitus and the male clypeus.

MALE (holotype): Total length 1.4, carapace width 0.6; leg 1: 6.2 (1.6+0.2 +1.6+2.0+0.8), tibia 2: 1.1, tibia 3: 0.8, tibia 4: 1.1; tibia 1 l/d: 26. Habitus as in fig. 279. Carapace light ochre, with slightly dark- er median stripe and three pairs of lateral spots (fig. 282), thoracic groove distinct but shallow (fig. 280); six eyes in two triads; distance PME-ALE about 15% of PME diameter. Clypeus slightly darker than carapace; sternum ochre-yellow. Chelicerae light brown, with stridulatory ridges laterally, and rugose surface frontally (fig. 285). Palps light ochre, only cymbium and procursus darker brown to black; coxa without retrolateral apophysis, femur without proximal retrolateral apophysis, procursus complex (figs. 283 284, 286 287), with hinged process (arrow in fig. 286); bulb consisting of simple globular part and tubular embolus ending in spine (figs. 53, 283). Legs light ochre, with dark rings on femora (proximally and subdistally) and tibiae (proximally and subdistally); retrolateral trichobothrium of tibia 1 at 21 23%; tarsus 1 with ~ 20 pseudosegments. Opisthosoma grayish-ochre, large blackish spots dorsally, large white spot above spinnerets.

VARIATION: Tibia 1 in two male paratypes: 1.4, 1.6. Tibia 1 in male from Bolivia: 1.7.

FEMALE (paratypes): Total length 1.5 1.6; tibia 1: 1.4 1.5 (tibia 1 in females from Bolivia: 1.6 1.7). In general very similar to male. Epigynum protruding (fig. 288), light, with asymmetrical dark internal structures showing through (fig. 289). Internal genitalia complicated, possibly with receptacle (fig. 290). Females are either right- or left-sided with respect to the internal structures.

DISTRIBUTION: Apparently widely distributed from northern Peru to Bolivia.

NOTE: One label says fogging palms... canopy epiphytes..., suggesting that the species lives on (probably the undersides of) leaves, as typical for Metagonia .

MATERIAL EXAMINED: PERU: Loreto: Rio Samiria : types above ; Alto Rio Samiria (5°12'S, 75°20'W), May 12, 1990 (T. Erwin GoogleMaps

et al.), 13 in MUSM. BOLIVIA: Beni: Est. Biol. Beni (14°47'S, 66°15'W), ~ 225 m elev., Nov. 8 14, 1989 (J. Coddington, C. Griswold, D. Silva, S. Larcher, E. Penaranda), 13 3♀ (2 vials) in USNM.