Scaphidysderina tsaran, Duperre, Nadine & Tapia, Elicio, 2017

Duperre, Nadine & Tapia, Elicio, 2017, The goblin spiders (Araneae, Oonopidae) of the OTONGA Nature Reserve in Ecuador, with the description of seven new species, Evolutionary Systematics 1 (1), pp. 87-109 : 92-94

Scaphidysderina tsaran sp. n. Figs 13-17

Type material.

Male holotype and female allotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve, (00.41564°S, 79.00425°W) 2105m, 24.v.-08.vi.2014, pitfall, E. Tapia, C. Tapia, N. Dupérré (QCAZ). Paratypes from Ecuador, Cotopaxi Province, OTONGA Biological Reserve, (00.42261°S, 79.00425°W) 2225m 16.viii.-05.ix.2014, 27♂5♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH).

Additional material.

Cotopaxi Province: OTONGA Biological Reserve (00.41994°S, 79.00623°W) 1997m, 08-21.vi.2014, 1♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); (00.41564°S, 79.5107°W) 2105m, 08-21.vi.2014, 10♂4♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 21.vi.-02.vii.2014, 9♂9♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (QCAZ); 13-25.xi.2014, 7♂1♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (QCAZ); 25.xi.-08.xii.2014, 4♂3♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); (00.42261°S, 79.00425°W) 2225m, 24.v.-08.vi.2014, 14♂7♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (AMNH); 08-21.vi.2014, 4♂2♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (DTC); 03-16.viii.2014, 19♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 13-25.xi.2014, 13♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 25.xi.-08.xii.2014, 11♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH).

Etymology.

The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning ‘beautiful’.

Diagnosis.

Males are distinguished from all species by their spine-like embolic basal process (Fig. 13). Females are distinguished by their T-shaped anterior genitalic process (Fig. 17), and from S. chirin sp. n. by the very elongated of apodemic projections (Fig. 17).

Description.

Male (holotype). Total length: 2.2; carapace length: 1.4; carapace width: 1.0.

COLORATION: Carapace and sternum red-brown; mouthparts orange-brown; abdominal scuta red-brown, abdominal soft portions white; legs orange-brown. CARAPACE: Carapace broadly oval; covered with low tubercles surrounded by U-shaped smooth area; fovea absent. Clypeus margin rebordered, without median projection. Sternum wider than long, not fused to carapace, surface highly crenulated (Fig. 15). Chelicerae slightly divergent, anterior face with swelling; with one promarginal tooth and dorsally directed spine (Fig. 14). Labium triangular, not fused to sternum, anterior margin deeply indented at middle. Endites distally excavated, with short ventral and longer dorsal processes. EYES: Eyes six, well developed; ALE largest, ALE oval, PME squared, PLE oval; posterior eye row straight in dorsal view; ALE separated by their radius, ALE-PLE touching, PME touching, PLE-PME touching. LEG: Leg formula: 4123; leg spination: Tibiae I v2-2-2-2-2; metatarsi I v2-2-2; tibia II v2-2-2-2-2; metatarsi II v2-2-2. ABDOMEN: Ovoid; book lung covers large, ovoid; posterior spiracles not connected by groove; dorsal scutum present, strongly sclerotized, not fused to epigastric scutum, entirely smooth; epigastric scutum strongly sclerotized, surrounding pedicel, not protruding; postepigastric scutum strongly sclerotized, almost semicircular, fused to epigastric scutum; spinneret scutum absent, supraanal scutum absent. GENITALIA: Cymbium yellow; bulb yellow, elongated oval, round ed apically; embolus dark, pointed apically, with small spine-like basal projection (Fig. 13).

Female. Total length: 3.0; carapace length: 1.4; carapace width: 1.1.

COLORATION: As in male. CARAPACE: As in male. Clypeus margin rebordered, with small median projection. Sternum as in male. Chelicerae not divergent, without swelling; with one promarginal tooth. Labium triangular, not fused to sternum, anterior margin deeply indented at middle. Endites distally not excavated. EYES: As in male. LEG: As in male. Palpal claw absent. ABDOMEN: Ovoid; book lung covers large, ovoid; posterior spiracles not connected by groove; dorsal scutum absent; postepigastric scutum strongly sclerotized, almost semicircular, fused to epigastric scutum; spinneret scutum absent, supraanal scutum absent. GENITALIA: Atrium trapezoidal (Fig. 16); internal genitalia with T-shaped anterior genitalic process; apodemes long with large, externally located projections (Fig. 17).

Natural history.

All specimens except one were collected between 2105-2225m, predominantly from mid-August to the beginning of December.

Distribution.

Only known from the type locality.