Orchestina macrofoliata, Henrard & Jocqué, 2012

Henrard, Arnaud & Jocqué, Rudy, 2012, 3284, Zootaxa 3284, pp. 1-104 : 74-77

Orchestina macrofoliata new species

Figures 463–507, 607

TYPE: Holotype Male : Democratic Republic of The Congo: Luki Biosphere (Nature) Reserve, young secondary forest, canopy, -5.65000°, 13.06666°, Sept. 14, 2007, De Bakker D., Michiels J.P. ( MRAC 228728 PBI _ OON 9009 ).

ETYMOLOGY: The species name refers to the large modified setae on the male labium.

DIAGNOSIS: The male of O. macrofoliata is recognized by the tiny bulbus ( Figs. 471–473), very high clypeus with intraocular drop-shaped outgrowth ( Fig. 465, 479 –781), chelicerae with setose swellings ( Fig. 468) and large modified setae on the labium ( Figs. 484–488). The female is recognized by the narrow, tube-shaped structure (AUS), in ventral view darkest anteriorly, forming a small elongate spot ( Fig. 474).

MALE (PBI_OON 9009). Total length 1.23. CEPHALOTHORAX: Carapace ( Figs. 463–466, 468, 476, 477) yellowish white, broadly oval in dorsal view (CW/CL ≈ 0.87), pars cephalica strongly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width. Clypeus very high, ALE separated from edge of carapace by more than two times their diameter; vertical in lateral view. Eyes ( Figs. 465, 479–481) with small drop-shaped, grooved excrescence between PME; ALE-PME separated by less than PME radius; PME circular; PLE-PME separated by less than PME radius. Sternum ( Figs. 467, 478) as long as wide, yellowish white, anterior margin unmodified, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, color pattern with margins and median band suffused with dark pigment; setae abundant, evenly scattered. Mouthparts: Chelicerae, endites and labium yellowish white. Chelicerae ( Figs. 466, 482) slightly divergent, anterior face with low proximal swelling, provided with long setae; fang sinuous ( Fig. 483). Labium ( Fig. 484) triangular, anterior margin indented at middle, same as sternum in sclerotization; with 3–5 setae on anterior margin, subdistal region provided anteriorly with group of five needle like setae, medially with two pair of wide, symmetric, flattened setae ( Figs. 467, 485–488). Endites serrula absent, anteromedian tip unmodified, same as sternum in sclerotization. ABDOMEN: ovoid; dorsum soft portions white, with dark posterior end. Book lung covers small, round, finely squamose. Pedicel unmodified, scutum absent, but abdomen not extending anterior of pedicel. Spinnerets: ALS ( Fig. 501) with four spigots, PMS with one spigot, PLS with two spigots. LEGS: white; LEGS: patella plus tibia I nearly as long as carapace (TL/CL ≈ 0,96); tarsi bearing carpeted setae below claws ( Fig. 497), claws ( Figs. 498–500) with proximal teeth curved, pointing backward. Leg spines absent. Tarsus I superior claws with six teeth on lateral surface of proclaw, six teeth on lateral surface of retroclaw; tarsus II superior claws ( Fig. 499) with seven teeth on lateral surface of proclaw, seven teeth on lateral surface of retroclaw; tarsus IV superior claws ( Fig. 500) with six teeth on lateral surface of proclaw, six teeth on lateral surface of retroclaw. Tarsal organ ( Figs. 489, 490) pear shaped. GENITALIA: Palp ( Figs. 471–473, 495, 496) proximal segments yellow; femur with ventroproximal swelling; patella attached to tibia sub-basally; tibia at least two times as wide as femur; cymbium yellow, spherical with sclerotized, dorsal comma-shaped spot, with setae densest on prolateral side; bulb yellow, slender, tapering apically; embolus dark, slender, forming an angle of about 120° with longitudinal bulb axis.

FEMALE (PBI_OON 9005). As in male except as noted. Total length 1.48. CEPHALOTHORAX: Carapace ( Figs. 469, 492, 493): ovoid in dorsal view (CW/CL ≈ 0.73). Clypeus sloping forward in lateral view. Sternum ( Fig. 470) as in male. Mouthparts: Labium ( Fig. 494) with 6 or more setae on anterior margin. Endites serrula present in single row. Female palp ( Figs. 505–507) spines absent; tarsus with distal pore; tarsal organ piriform, with three sensilla visible. ABDOMEN: without long posterior extension, rounded posteriorly; dorsum soft portions without color pattern. Epigastric area setae uniform. Spinnerets: ALS ( Fig. 502) with five spigots, PMS ( Fig. 503) with two spigots, PLS ( Fig. 504) with three spigots. LEGS: patella plus tibia I shorter than carapace (TL/CL ≈ 0.84). Leg spines: tarsus I superior claws ( Fig. 498) with seven teeth on lateral surface of proclaw, seven teeth on median surface of proclaw, seven teeth on lateral surface of retroclaw, seven teeth on median surface of retroclaw; tarsus II superior claws with seven teeth on median surface of proclaw, seven teeth on median surface of retroclaw; tarsus III superior claws with seven teeth on lateral surface of proclaw, seven teeth on median surface of proclaw, tarsus IV ( Fig. 497) seven teeth on lateral surface of retroclaw. Tarsal organ ( Fig. 491) as in male. Female palp ( Figs. 505–507) spines absent; tarsus with distal pore, ending in sharp conical point; tarsal organ piriform, margin raised above surroundings, with three sensilla. GENITALIA: Ventral view ( Fig. 474): dark spot anterior of epigastric fold; tube-shaped structure behind it visible through cuticle. Dorsal view ( Fig. 475): AUS longitudinal, cylindrical, strongly sclerotized anteriorly, probably folded over apically; Pr not visible in our preparations; Ex curving anteriorly to about 2/3 AUS length; ARe not visible in our preparation but probably fused with AUS anteriorly; posterior receptaculum absent.

MATERIAL EXAMINED: DEMOCRATIC REPUBLIC OF THE CONGO: Kongo Central (formerly Bas- Congo): Luki Forest Reserve, primary forest, canopy, -5.63333°, 13.06666°, Sept. 14, 2007, De Bakker D., Michiels J.P., 9♀ paratypes ( MRAC 228805 PBI _ OON 9002 ); as previous, 1♀ paratype ( MRAC 228771

PBI _OON 16767); as previous, 3♂ paratypes ( MRAC 228780 PBI _OON 16768); as previous, 1♂ paratype ( MRAC 228954 PBI _OON 33587); as previous, 3♀ paratypes ( MRAC 228946 PBI _OON 33595); as previous, old secondary forest, canopy, 3♂ 5♀ paratypes ( MRAC 228778 PBI _OON 16775); as previous, 1♀ paratype ( MRAC 228726 PBI _OON 33976); young secondary forest, 2♂ paratypes ( MRAC 228722 PBI _OON 33977); as previous, 1♀ paratype ( MRAC 228725 PBI _ OON 9004 ); as previous, 1♀ paratype ( MRAC 228726 PBI _ OON 9005 ); as previous, 1♂ paratype ( MRAC 228727 PBI _ OON 9007 ); as previous, 3♂ paratypes ( MRAC 228723 PBI _ OON 9008 ); as previous, 1♂ paratype ( MRAC 228720 PBI _OON 33952); as previous, 3♂ paratypes ( MRAC 228721 PBI _OON 33951); as previous, 1♂ ( MRAC PBI _OON 33650) ; as previous, 1♀ ( MRAC PBI _OON 33649) .

DISTRIBUTION: Known only from the type locality: Luki Forest Reserve in DR Congo ( Fig. 607) .