Orchestina fannesi, Henrard & Jocqué, 2012

Henrard, Arnaud & Jocqué, Rudy, 2012, 3284, Zootaxa 3284, pp. 1-104 : 48-52

Orchestina fannesi new species

Figures 222 –265, 608

TYPE: Holotype Female : South Africa, Tshulu Research Reserve, riverine forest, canopy, 385m, -22.56666°, 30.80000°, Feb. 18, 2008, De Bakker D., Jocqué R., Fannes W. & Henrard A., 1♀ Holotype ( MRAC 228732 PBI _ OON 8912 ) .

ETYMOLOGY: The species name is a patronym in honor of Wouter Fannes one of the collectors of the type material and specialist of the oonopid spider family.

DIAGNOSIS: Males of O. fannesi are recognized by the spirally wound sperm duct in the bulb which is egg shaped and has a tube shaped distal part leading to embolus, inserted medially on the bulbus ( Figs. 231–233). In O. lanceolata the bulb has a frontal excrescence and the embolus is providsed with a double triangular extension. The female is recognized by the combination of genital area with two small, dark, sclerotized pockets and a recurved groove anterior of the epigastric fold (Ri 3 in Burger et al. 2010) and by the presence of a large posterior receptaculum ( Figs. 234–239).

Note: According to the original description (Simon, 1893) and Dalmas (1916) the female genitalia of O. cincta , known only from females of the Cape Region in South Africa, present no sclerotized structures. The type of O. cincta is probably a juvenile specimen as there is not even a sclerotized opening (Dalmas, 1916). A specimen from the type locality identified by Benoit in 1986 (MRAC 133683), is not conspecific with O. fannesi . Since in the latter there are obvious sclerotized structures, we consider O. cincta as a different species. The absence of any characteristic traits prevents the inclusion of the species in the identification key.

MALE (PBI_OON 8975). Carapace length 0.51. CEPHALOTHORAX: Carapace ( Figs. 225, 227, 230) yellow, elongate oval in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width. Clypeus sloping forward in lateral view. Eyes ALE-PME touching, PME circular; PLE-PME separated by less than PME radius. Sternum ( Fig. 228) as long as wide, yellowish white, uniform, anterior margin unmodified, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension; setae sparse, evenly scattered. Mouthparts: Chelicerae, endites and labium yellow. Chelicerae ( Fig. 240) straight; setae sparse. Labium ( Figs. 229, 242, 245) anterior margin indented at middle, same as sternum in sclerotization, rounded, lateral margin strongly sclerotized; with 3–5 setae on anterior margin, with median subdistal setae flanked by two small spines emerging from tubular projection near anterior margin ( Fig. 242), with median setae near posterior margin and with four central setae delimiting a rectangle. Endites ( Figs. 229, 241, 243, 244) serrula present in single row, anteromedian tip with one strong, tooth-like projection, with strongly sclerotized tip, pointing forward; anterior part bifid, one prong with sclerotized tip, other one mesally with spatulate setae near prolateral margin. ABDOMEN ( Fig. 226): ovoid; dorsum soft portions yellow-brown, with gray netlike pattern, darker posteriorly, with median chevron. Book lung covers small, round. Spinnerets: ALS with four spigots, PMS with one spigot, PLS with two spigots. LEGS: yellow; patella plus tibia I shorter than carapace (TL/CL ≈ 0,87). Tarsal organ ( Figs. 246, 247) narrow diamond shaped. Bothria ( Fig. 248); base rounded, aperture internal texture not grate-like. GENITALIA: Palp ( Figs. 231-233, 249-254) proximal segments yellow; patella shorter than femur; tibia one to two times as wide as femur; cymbium yellow, without distal patch of setae; bulb yellow, stout, spherical, with spiral sperm duct; embolus dark, tapering apically.

FEMALE (PBI_OON 8912). As in male except as noted. Total length 1.10. CEPHALOTHORAX: Carapace ( Figs. 222-225): elongate oval in dorsal view (CW/CL ≈ 0.71), pattern with median sepia band flanked by two lateral bands, extending backwards from ocular area, joining at top of carapace in foveal area. Sternum ( Fig. 224) yellow. Mouthparts: Labium rounded, lateral margin strongly sclerotized at base. ABDOMEN ( Fig. 226): without long posterior extension, rounded posteriorly; dorsum soft portions with dark posterior end, with anterior median sepia band. Pedicel tube short. GENITALIA ( Figs. 234-239, 255-265): Ventral view: genital area with dark central region visible through cuticle (AUS), two small sclerotized pockets in front of epigastric sulcus (sensu Saaristo & van Harten 2002, Ri 3 in Burger et al. 2010); epigastric fold with strongly sclerotized lips. Dorsal view: AUS Tshaped structure (Pr), with median part darker, ARe nearly transparent, squared; Pp present, large; posterior recaptulum present, large, egg-shaped membranous sac, apparently connected to base of posterior plate ( Fig. 236- 239, 262 (arrow)).

MATERIAL EXAMINED: NAMIBIA: Caprivi: Katima Mulilo , -17.5000° 24.26666°, woodland, base of cocunut tree, Oct. 22, 1987, Jocqué R., 1♀ ( MRAC 168568 PBI _OON 29173) . SOUTH AFRICA: Limpopo: Tshulu Research Reserve , riverine forest, canopy, 385m, -22.56666°, 30.80000°, Feb. 18, 2008, De Bakker D., Jocqué R., Fannes W. & Henrard A., 1♀ ( MRAC 228730 PBI _ OON 8911 ) ; as previous, Feb. 18, 2008, 1♀ paratype ( MRAC

228734 PBI _ OON 8913 ); as previous, Feb. 18, 2008, 3♀ paratypes ( MRAC 228784 PBI _ OON 8914 ); as previous, Feb. 18, 2008, 1♂ paratype ( MRAC 228733 PBI _ OON 8975 ); as previous, Feb. 17, 2008, 1♀ paratype ( MRAC 228729 PBI _OON 33897); as previous, riverine forest, canopy, Feb. 18, 2008, 1♀ paratype ( MRAC 228731 PBI _OON 33975) .

DISTRIBUTION: Known from the Limpopo Province in northern South Africa and the Caprivi Strip in Namibia ( Fig. 608).