Opopaea andringitra, 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 : 45-50

Opopaea andringitra , new species

Figures 9, 22, 23, 25, 28, 33–38, 40, 44–46, 54–69, 71–73, 77–79, 89, 93, 99–100, 167–199; map 2

TYPES: Male holotype and female allotype from Fianarantsoa: Réserve Andringitra, 38 km S Ambalavao, 22 ° 129S, 46 ° 589E, 1680 m, EF19 sifted litter, rainforest. 23 October 1993, B.L. Fisher (CASC PBI_OON 34314), 18, 1♀.

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

DIAGNOSIS: Males of O. andringitra can most easily be distinguished from those of other Opopaea species by the rectangular shape of the distal part of the cymbiobulbus, which is abruptly depressed dorsally, and the truncated palpal tip with two very short but sharp, sclerotized extensions (figs. 167–168, 183–184, 187–222). Females of O. andringitra can easily be recognized by a thick and divided scutal ridge, forming a reverse triangle medially and bearing a tiny, dark parmula anteriorly, and a short, sclerotized extension posteriorly (figs. 169, 189–190).

DESCRIPTION: Male (holotype) (PBI_OON 35038). Large species. Total length 1.73. Color: orange. Carapace: pars cephalica elevated posteriorly with one row of four continuous hairs, carapace anteriorly narrowed to about one third its maximum width (figs. 180, 181). Carapace anterolateral corners without sclerotized triangular extension. Clypeus low, not rebordered. Chilum absent. Eyes large. ALE largest. ALE and PLE oval, PME squared; 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 and shiny, without pits, shape of posterior part between coxae IV hexagonal, more or less narrow. Lateral margins of area between coxae III unmodified, without lumps; setae more or less abundant, dark, needlelike, evenly distributed, originating from surface, without hair tufts (fig. 182). Abdomen oval and not flattened laterally toward posterior end. Palp posterior margin more or less straight with two posterior protuberances: a wide and smooth proximal one and a sharply pointed and small distal one (figs. 183–187). Palpal femora half the size of palpal patella and inserted more or less medially to it. Palpal

fenestra round, large and located near the tip of the palp, fenestral top not raised (figs. 167–168, 183–184, 191–199).

Female (allotype) (PBI_OON 35038). Total length 2.04. Orange, abdomen oval, and not flattened posteriorly. Postgynum depression short and narrow, postgynum depression ridge weakly sclerotized posteriorly (figs. 169, 189–190).

MEASUREMENTS: Male (holotype) ( PBI _ OON 35038). TL: 1.73 ; CL: 0.81; CW: 0.66; CH: 0.44; AL: 1; AW: 0.72; ALE: 0.10; PME: 0.10; PLE: 0.09; EGW: 0.27; ALE-ALE: 0.02; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0; CBL: 0.25; CBW: 0.10; CBL/PTL: 0.60; FI: 0.16.

Female (allotype) ( PBI _OON 35038). TL: 2.04 ; CL: 0.85; CW: 0.66; CH: 0.46; AL: 1.25; AW: 0.94; ALE: 0.11; PME: 0.09; PLE: 0.08; EGW: 0.26; ALE-ALE: 0.02; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0; EFL: 0.23; LAL: 0.11; PGI (LAL/EFL): 0.48; PDL/LAL: 0.45; PDW/EFL: 0.35.

VARIATION: Female: TL: 2.02–2.06; CL: 0.82–0.85; CW: 0.66–0.68; AL: 1.25–1.28; AW: 0.85–0.94.

NATURAL HISTORY: O. andringitra was mostly found in montane rainforest at high elevations (1680–1990 m).

DISTRIBUTION: O. andringitra was mostly found in south-central Madagascar in the province of Fianarantsoa (Andringitra) (map 2).

OTHER MATERIAL EXAMINED: MADA- GASCAR: Fianarantsoa: Réserve Andringitra, 38 km S Ambalavao, 22 ° 129S, 46 ° 589E, 1680 m, EF19 sifted litter, rainforest, 23 October 1993, B.L. Fisher (CASC PBI_OON

310. Dorsal view. 311. Ventral view. Scale bars: 0.2 mm.

3072), 1♀ (CASC PBI_OON 3108), 1♀ (CASC PBI_OON 3135), 1♀ (CASC PBI_OON 3076), 1♀ (CASC PBI_OON 3121), 1♀. 1975 m, sifted litter (leaf mold, rotten wood), montane rainforest, 29 October 1993, B.L. Fisher (CASC PBI_OON 3081), 1♀. 8.5 km SE Antanitotsy, 22 ° 109S, 46 ° 589E. 1990 m, sifting litter, rainforest, 06 March 1997, B.L. Fisher (CASC PBI_OON 3134), 1♀.