Opopaea torotorofotsy, 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 : 124-128

Opopaea torotorofotsy , new species

Figures 87, 750–784; map 2

TYPES: Male holotype and female allotype from Toamasina province, Torotorofotsy, 18 ° 529150S, 48 ° 209510E, 1070 m, sifted litter (leaf mold, rotten wood), marsh edge, montane rainforest, 24 March 2004, colls. Malagasy ant team (CASC PBI_OON 3754).

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

DIAGNOSIS: Males of O. torotorofotsy can be distinguished from those of other Opopaea species by the tip of the cymbiobulbus, with a long engrossed, leaflike sclerotized extension prolaterally directed (figs. 751, 767, 771, 779, 782). Females of O. torotorotsy can be easily recognized by an arclike postgynum depression as wide as the distance between the lateral apodemes and almost as long as the distance between epigastric furrow and the shallow groove connecting the tracheal spiracles and by the postgynum depression ridge, sclerotized and more or less thick only in its posteromedian part (figs. 752, 772, 773).

DESCRIPTION: Male (holotype) (PBI_ OON 3754). Small to medium-sized species. Total length 1.57. Color: brown orange to yellowish orange. Carapace: pars cephalica elevated posteriorly with one row of two sets of three denticles bearing long and thick hairs directed 90 ° perpendicular to carapace top (figs. 763, 764), carapace anteriorly narrowed to one third maximum width. Carapace anterolateral corners without sclerotized triangular extension. Clypeus low, not rebordered. Chilum present, undivided. Eyes medium sized. ALE largest. ALE oval, PME and PLE circular; 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 smooth, without pits, shape of posterior part between coxae IV hexagonal, not constricted. Lateral margins of area between coxae III unmodified, without lumps; setae sparse, dark, needlelike, densest laterally, originating from surface, without hair tufts (figs. 762– 765). Posterior margin with one proximal protuberance and curved downward. Palpal femora half the size of palpal patella and inserted medially to it. Palpal fenestra enlarged anteriorly and more or less large and located at one third the length of the palp; fenestra top not raised as is the area before fenestra (figs. 750, 751, 766, 767, 770, 771, 774–784).

Female (allotype) (PBI_OON 3754). Total length 1.72. Brown yellowish to yellowish

orange, abdomen round and flattened posteriorly. Scutal ridge thin and straight bearing a small parmula (figs. 752, 772, 773).

MEASUREMENTS: Male (holotype) ( PBI _ OON 3754 ). TL: 1.57 ; CL: 0.70; CW: 0.57; CH: 0.32; AL: 0.92; AW: 0.63; ALE: 0.08; PME: 0.07; PLE: 0.06; EGW: 0.12; ALE- ALE: 0.03; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0; CBL: 0.22; CBW: 0.08; CBL/ PTL: 0.73; FI: 0.15.

Female (allotype) ( PBI _ OON 3754 ). TL: 1.72 ; CL: 0.72; CW: 0.59; CH: 0.36; AL: 1.08; AW: 0.82; ALE: 0.09; PME: 0.08; PLE: 0.06; EGW: 0.21; ALE-ALE: 0.03; ALE-PLE: 0.02; PME-PME: 0; PLE-PME: 0.01; EFL: 0.18; LAL: 0.09; PGI (LAL/EFL): 0.5; PDL/ LAL: 0.66; PDW/EFL: 1.

VARIATION: Male: TL: 1.3–1.72; CL: 0.56– 0.7; CW: 0.44–0.57; AL: 0.71–0.92; AW: 0.52–0.63.

Female: TL: 1.5–1.72; CL: 0.63–0.73; CW: 0.48–0.58; AL: 0.92–1.04; AW: 0.65–0.82.

NATURAL HISTORY: O. torotorofotsy was mostly found in tropical dry forest at low elevation and in montane rainforest of the east coast. Specimens from the east coast are smaller, have larger eyes, and the posterior end of the sternum (area between coxae IV) of the males is more or less constricted compared to specimens from the dry forests.

DISTRIBUTION: O. torotorofotsy was mostly found in northwestern Madagascar in the province of Mahajanga (Ankarafantsika, Androngonibe, Park National Namoroka, Ambinda) and one locality (Torotorofotsy) on the east coast of the island (map 2).

OTHER MATERIAL EXAMINED: MAD- AGASCAR: Mahajanga: Androngonibe, 16.925 ° S, 44.3683 ° E, 30 m, sifted litter (leaf mold, rotten wood), tropical dry forest, 20–24 November 2006, Fisher and Griswold, et al. (CASC PBI_OON 3766), 58, 2♀. Park National Namoroka, 9.8 km 300 ° WNW Vilanandro, 16 ° 289000S, 45 ° 219000E, 140 m, pitfall trap (leaf mold, rotten wood), tropical dry forest, 4–8 November 2002, Fisher and Griswold et al., 1♀ (CASC PBI_OON 3785). Ambinda, 16.01 ° S, 45.265 ° E, 10 m, sifted litter (leaf mold, rotten wood), tropical dry forest, 27 November–01 December 2006, Griswold et al. (CASC PBI_OON 3769), 28, 7♀. PN Ankarafantsika, Ampijoroa Station Forestière, 40 km 306 ° NW Andranofasika, S16 ° 199150, E46 ° 489380, 130 m elevation, 26 March–01 April 2001, tropical dry forest, EF19 sifted litter, coll. Fisher and Griswold, et al. (CASC PBI_OON 3141), 28, 4♀. Toamasina: Torotorofotsy, 18 ° 529150S, 48 ° 209510E, 1070 m, sifted litter (leaf mold, rotten wood), marsh edge, montane rainforest, 24 March 2004, colls. Malagasy ant team (CASC PBI_OON 00003754), 1♀.