Opopaea sandranantitra, 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 : 120-124

Opopaea sandranantitra , new species

Figures 715–749; map 3

TYPES: Male holotype and female allotype from Toamasina province: Forêt classée de Sandranantitra, rainforest, 18 ° 2.99S, 49 ° 5.59E, 450 m, sifted litter, 18–21 January 1999, H.J. Ratsirarson (CASC PBI_OON 3710).

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

DIAGNOSIS: Males of O. sandranatitra can most easily be distinguished from those of other Opopaea species by an elongated cymbiobulbus, longer than the patella with posterior edge straight with only one distal protuberance and anterior edge truncated, almost rectangular (figs. 715, 716, 731, 732, 735, 736, 739–749). Females of O. sandranantitra can easily be recognized by a divided and very heavily sclerotized, and thick border of the epigastric furrow that drops medially

764. Dorsal view. 765. Ventral view. Scale bars: 0.2 mm.

into an inverse arclike sclerotized bulge above which a small cylindrical parmula is found (figs. 717, 737, 738).

DESCRIPTION: Male (holotype) (PBI_ OON 3710). Large species. Total length 2.1. Color: dark orange. Carapace: pars cephalica elevated posteriorly with one row of four denticles (figs. 728, 729). Carapace anterolateral corners without sclerotized triangular extension. Clypeus low, not rebordered. Chilum absent. Eyes medium sized to large. ALE largest. ALE oval, PME and PLE circular; PME darkened compared to other eyes, posterior eye row straight viewed from above, straight from front; ALE separated by almost 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 smooth, without pits, shape of posterior part between coxae IV hexagonal, narrowed neither medially nor near the end (fig. 730). Lateral margins of area between coxae III unmodified, without lumps; setae more or less abundant, evenly distributed, originating from surface, without hair tufts (figs. 727–730). Cymbiobulbus tip sclerotized without extensions and fenestra top not raised, but continuing anteriorly into a square sclerotized area. Fenestra small and elongated oriented obliquely, located near the end of the palp. Palpal femora long, about two thirds the length of the palpal patella and inserted medially to it (figs. 715, 716, 731, 732, 735, 736, 739–749).

Female (allotype) (PBI_OON 3710). Total length 2.37. Dark orange, abdomen almost circular, not flattened, and truncated posteriorly. Postgynum depression more or less short and wide, ridge thin and not sclerotized (figs. 717, 737, 738).

MEASUREMENTS: Male (holotype) ( PBI _ OON 3710 ). TL: 2.1 ; CL: 0.89; CW: 0.73; CH: 0.42; AL: 1.23; AW: 0.85; ALE: 0.11; PME: 0.09; PLE: 0.08; EGW: 0.27; ALE- ALE: 0.04; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0.01; CBL: 0.30; CBW: 0.11; CBL/PTL: 0.96; FI: 0.14.

Female (allotype) ( PBI _OON 34407). TL: 2.37 ; CL: 0.98; CW: 0.77; CH: 0.44; AL: 1.45; AW: 1.13; ALE: 0.12; PME: 0.09; PLE: 0.09; EGW: 0.29; ALE-ALE: 0.06; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0.02; EFL: 0.27; LAL: 0.12; PGI (LAL/EFL): 0.44; PDL/LAL: 0.5; PDW/EFL: 0.22.

VARIATION: Female: TL: 2.34–2.37; CL: 0.98– 0.99; CW: 0.76–0.77; AL: 1.42–1.47; AW: 1.08–1.13.

NATURAL HISTORY: O. sandranantitra was mostly found in rainforest and montane rainforest from 450–1068 m elevations.

DISTRIBUTION: O. sandranantitra is mostly found on the east coast of Madagascar in the province of Toamasina (Sandranantitra, Analamay) (map 3).

OTHER MATERIAL EXAMINED: MADA- GASCAR: Toamasina: Analamay, montane rainforest, 18 ° 489220S, 48 ° 209130E, 1068 m, sifted litter, 21 March 2004, colls. Malagasy ant team, BLF10502 (CASC PBI_OON 3788), 1♀. Sandranantitra, Forêt classée de Sandranantitra, rainforest, 18 ° 2.99S, 49 ° 5.59E, 450 m, sifted litter, 18–21 January 1999, H.J. Ratsirarson (CASC PBI_OON 3710), 28.