Scaphidysderina chirin, 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 : 90-91

Scaphidysderina chirin sp. n. Figs 5-8

Type material.

Male holotype and female allotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 16.viii.-03.ix.2014, pitfall, E. Tapia, C. Tapia, N. Dupérré (QCAZ). Paratypes from Ecuador, Cotopaxi Province OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 28.vi.-12.vii.2014, 21♂19♀, pitfall (ZMH).

Additional material.

ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 28.vi.-12.vii.2014, 3♂2♀, sifting litter with Berlese extraction, E. Tapia, C. Tapia, N. Dupérré (DTC); 12-23.vii.2014, 21♂13♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 23. vii– 03.viii.2014, 9♂12♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 05-16.viii.2014, 10♂8♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 16.viii. -03.ix.2014, 20♂12♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); (00.41941°S, 78.99606°W) 1717m, 24.v.-08.vii.2014, 4♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); (00.41433°S, 79.0035°W) 1888m, 21.v.-12.vii.2014, 1♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 03-16.viii.2014, 7♂2♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (AMNH); 16.viii.-05.ix.2014, 16♂4♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (QCAZ); 13-25.xi.2014, 1♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (ZMH); 25.xi.-08.xii.2014, 3♂1♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (DTC).

Etymology.

The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning “narrow” for the slender male palpal bulb.

Diagnosis.

Males are distinguished by their short, twisted basal process of the embolus (Fig. 5). Females are distinguished by the T-shaped anterior genitalic process (Fig. 8) and from S. tsaran sp. n. by the more externally positioned apodemic projections (Fig. 8).

Description.

Male (holotype). Total length: 2.2; carapace length: 1.1; carapace width: 0.9.

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, with median projection. Sternum wider than long, not fused to carapace, surface highly crenulated. Chelicerae slightly divergent, anterior face with swelling; with one promarginal tooth and dorsally directed spine (Fig. 6). Labium triangular, not fused to sternum, anterior margin indented at middle. Endites distally excavated, with short ventral and longer dorsal processes. 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; tibiae 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 and bulb yellow, fused; bulb elongated oval, pointed apically (Fig. 5); embolus dark basally, transparent and pointed apically, with small twisted basal projection (Fig. 5).

Female. Total length: 3.1; carapace length: 1.3; carapace width: 1.0.

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 indented at middle. Endites distally not excavated. EYES: As in male. LEG: As in male. Palp without claw. 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 oval; epigastric scutum with an X-shaped marking (internal genitalia visible by transparence) (Fig. 7); internal genitalia with T-shaped anterior genitalic process and short apodemes with externally positioned pointed projections (Fig. 8).

Natural history.

All specimens were collected between 1209 and 1888m. Most specimens were collected from mid-June to mid-July, and mid-August to early September.

Distribution.

Only known from the type locality.