Opopaea tsinjoriaky, Daniela & Andriamalala & D.C. & Hormiga & D.C., 2013

Daniela, Andriamalala, D. C., Hormiga, Gustavo & D. C., 2013, Systematics Of The Goblin Spider Genus Opopaea (Araneae, Oonopidae) In Madagascar, Bulletin of the American Museum of Natural History 2013 (380), pp. 1-156 : 147-152

Opopaea tsinjoriaky , new species

Figures 43, 86, 912–945; map 2

TYPES: Male holotype and female allotype from Toliara province, Forêt de Tsinjoriaky, 6.2 km 84 ° E Tsitoha, 22 ° 48980S, 43 ° 259140E, 70 m, sifted litter (leaf mold, rotten wood), spiny forest/thicket, 06–10 March 2002, coll. B.L. Fisher et al. (CASC PBI_OON 3771), 18, 1♀.

ETYMOLOGY: The species epithet is a name in apposition taken from the type locality.

DIAGNOSIS: Males of O. tsinjoriaky can be most easily distinguished from those of other Opopaea species by the shape of the cymbiobulbus, with the area above the fenestra raised and sloping steeply downward toward the tip, and by its tip having two large liplike extensions (figs. 912, 913, 928, 929, 932, 933, 936–945). Females of O tsinjoriaky can easily be recognized by a postgynum depression ridge extremely thick and sclerotized and a scutal ridge medially depressed thick and sclerotized bearing above it an elongated parmula (figs. 914, 934, 935).

DESCRIPTION: Male (holotype) (PBI_ OON 3771). Small species. Total length 1.32. Color: orange. Carapace: pars cephalica not elevated with one row of two sets of three denticles bearing long hairs, carapace anteriorly narrowed to one third maximum width. Carapace anterolateral corners without sclerotized triangular extension. Clypeus low, not rebordered. Chilum absent. Eyes large. ALE and PME of the same size and largest. ALE and PLE oval, PME square; PME darkened compared to other eyes, posterior eye row straight viewed from above, procurved from front; ALE separated by less than their radius, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius. Sternum longer than wide with radial furrows between coxae, surface hairy, without pits, shape of posterior part between coxae IV hexagonal, slightly constricted. Lateral margins of area between coxae III unmodified, without lumps; setae sparse, dark, needlelike, evenly distributed, originating from surface, without hair tufts (figs. 920–923). Palp posterior margin straight and with two protuberances, a distal one smaller and more sharply pointed compared to the proximal one. Palpal femora half the size of palpal patella and inserted at one third the length of the patella. Palpal fenestra oval, located at one third the length of the palp, fenestral top raised, area before fenestra not raised into a dome but forming a

straight, steep slope to the tip (figs. 912, 913, 928, 929, 932, 933, 936–945).

Female (allotype) (PBI_OON 3771). Total length 1.29. Abdomen oval, not flattened posteriorly with ventral scutum squared at posterior end. Epigynum postgynum depression two thirds as wide as the distance between the lateral apodemes and one half as long as the distance between epigastric furrow and the shallow groove connecting tracheal spiracles (figs. 914, 934, 935).

MEASUREMENTS: Male (holotype) ( PBI _ OON 3771 ). TL: 1.32 ; CL: 0.58; CW: 0.48; CH: 0.25; AL: 0.75; AW: 0.63; ALE: 0.09; PME: 0.09; PLE: 0.06; EGW: 0.19; ALE- ALE: 0.03; ALE-PLE: 0.02; PME-PME: 0; PME-PME: 0; CBL: 0.17; CBW: 0.08; CBL/ PTL: 0.68; FI: 0.11.

Female (allotype) ( PBI _ OON 3771 ). TL: 1.28 ; CL: 0.55; CW: 0.49; CH: 0.22; AL: 0.92; AW: 0.67; ALE: 0.08; PME: 0.07; PLE: 0.05; EGW: 0.19; ALE-ALE: 0.03; ALE-PLE: 0.01; PME-PME: 0; PME-PME: 0; EFL: 0.13; LAL: 0.06; PGI (LAL/EFL): 0.46; PDL/LAL: 0.5; PDW/EFL: 0.76.

VARIATION: Male: TL: 1.29–1.32; CL: 0.57–0.59; CW: 0.46–0.48; AL: 0.70–0.77; AW: 0.48–0.51.

Female: TL: 1.27–1.28; CL: 0.55–0.73; CW: 0.47–0.49; AL: 0.70–0.91; AW: 0.64–0.67.

NATURAL HISTORY: O. tsinjoriaky was mostly found in very dry spiny forest at low elevations.

DISTRIBUTION: O. tsinjoriaky was found in southwestern Madagascar, in the province of Toliara (Forêt de Tsinjoriaky, Park National de Tsimanampetsotsa, Ranobe) (map 2).

OTHER MATERIAL EXAMINED: MADA- GASCAR: Toliara: Park National de Tsimanampetsotsa, forêt de Bemanateza, 20.7 km 81 ° E Efoetse, 23 km 131 ° SE Beheloka, 23 ° 599320S, 43 ° 529500E, 90 m, sifted litter

960. Dorsal view. 961. Ventral view. Scale bars: 0.2 mm.

(leaf mold, rotten wood), spiny forest/thicket, 22–26 March 2002, coll. B.L. Fisher et al. (CASC PBI_OON 00034313), 128, 23♀. Ranobe, 23 ° 029220S, 43 ° 369370E, 30 m, sifted litter (leaf mold, rotten wood), spiny forest/ thicket, 05–28 January 2003, coll. Frontier Project (CASC PBI_OON 3817), 1♀. Forêt de Tsinjoriaky, 6.2 km 84 ° E Tsitoha, 22 ° 48980S, 43 ° 259140E, 70 m, sifted litter (leaf mold, rotten wood), spiny forest/thicket, 06– 10 March 2002, coll. B.L. Fisher et al. (CASC PBI_OON 3771), 88, 20♀.