Niarchos matiasi, Platnick & Duperre, 2010

Platnick, Norman I. & Dupérré, Nadine, 2010, The Andean Goblin Spiders Of The New Genera Niarchos And Scaphios (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2010 (345), pp. 1-120 : 88

Niarchos matiasi , new species Figures 689–698

TYPE: Female holotype from Berlese sample of rainforest litter taken at an elevation of 295 m at the Estación Científica Yasuni , Río Tiputini , Puerto Francisco de Orellana, Parroquia, Cantón Francisco de Orellana, 0.067428uS, 76.39764uW, Orellana, Ecuador (Dec. 1–5, 2009; M. Ramírez, Niarchos Exped. ), deposited in QCAZ (PBI_OON 443) .

ETYMOLOGY: The specific name is a patronym in honor of Matias Izquierdo, a student of the collector of the holotype, in recognition of his many contributions to the success of the Niarchos Expedition.

DIAGNOSIS: Females resemble those of N. grismadoi in having an enlarged but membranous anterior receptaculum and boomerang-shaped apodemes of the postepigastric scutum, but have a much larger anterior sclerotization on the anterior receptaculum (figs. 697, 698).

MALE: Unknown.

FEMALE (PBI_OON 443, figs. 689–698): Total length 1.54. Posterior eye row straight from above; PLE-PME separated by less than PME radius. Sternum surface smooth. Leg spination: tibiae IV v0-0-2; metatarsi IV v0-0- 1p. Anterior receptaculum enlarged, occupying most of distance between epigastric furrow and pedicel, with wide anterior sclerotization (figs. 697, 698).

OTHER MATERIAL EXAMINED: One female taken with the holotype (MACN PBI_OON 444).

DISTRIBUTION: Known only from the Yasuni Biological Station in lowland Orellana province, Ecuador.

Figures

Figs. 689–698. Niarchos matiasi, new species, female. 689. Habitus, dorsal view. 690. Same, ventral view. 691. Carapace, dorsal view. 692. Sternum and mouthparts, ventral view. 693. Habitus, lateral view. 694. Same, anterior view. 695. Carapace, lateral view. 696. Epigastric region, ventral view. 697. Genitalia, ventral view. 698. Same, dorsal view.