Rouxalna villosa Delorme 2018, sp. nov.
Creators: name: Delorme, Quentin
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Rouxalna
Rouxalna villosa

description: Rouxalna villosa sp. nov.
(Figs. 8–14)
Material examined. One holotype male (MNHN 19289) and one paratype femalle (MNHN 19290), New Caledonia, Province sud, Païta, Mont Humboldt (1350 m), 11/II/2005, Sylvie Cazères, caught by net, (MNHN); 4 paratypes males New Caledonia, Province sud, Païta, Mont Humboldt (1350 m), 11/II/2005, Sylvie Cazères, caught by net, (CXMNC).
Body measurements (in mm, n= 6, mean [range]). FL: 19.4 [18.9 – 20.5]; BL: 19.5 [19.0 – 20.0]
Etymology. From Latin “villorum” meaning “hairy”.
Diagnosis. Among Rouxalna species, R. villosa sp. nov., can be distinguished from R. rouxi and R. scabens by the presence of dense long hair covering the body.
Description of male (Figs. 8–11). Head. VerteX mostly black with pink ocelli; covered by sparse long black hair; epicranial suture yellowish, wide and deep; frons entirely black; dorsal postclypeal area with a yellow median furrow. Supra-antennal plates black, with an orange wide margin. Antennal flagella and pedicels black. Postclypeus bicolour; median part black and lateral parts brownish; slightly domed with five prominent transverse grooves; covered by sparse long black hair. Anteclypeus bicolour; black on lateral part and brown medially; covered by sparse long black hair. Rostrum with labrum and mentum brown; apeX of the rostrum blackish; rostrum reaching mid coXae; covered by sparse long black hair.
Thorax. Pronotum black with ochraceous median linear fasciae; covered by sparse long black hair. Pronotal collar and ochraceous lateral parts. Mesonotum and parapsidal suture ochraceous; submedian and lateral sigilla black; scutal depression, not well distinct. Cruciform elevation ochraceous eXcept black anterior branches. Opercula whitish and broadly rounded; bearing sparse silver pubescence.
Wings. Fore wing hyaline; venation pale brown, becoming darker towards apical cells and ambient veins; half of pterostigma infuscated. Hind wings hyaline, reaching middle of fore wings; venation brownish.
Legs. Covered by sparse long black hair; fore femora brown to dark brown at lateral margins; mid and hind femora brown to yellowish. Fore and mid tibiae brownish, becoming darker apically. Fore and mid tarsi and claws dark brown. Meracantha sharp, whitish, and much shorter than opercula.
Abdomen. All tergites covered by short silver pubescence; tergites 1 and 2 uniformly black; tergites 3 to 8 black with narrow ochraceous posterior margin. Sternites I to VIII uniformly pale brown. Timbals bearing three long ribs, unfused ventrally; ribs 1 and 2 fused dorsally; rib 3 unfused ventrally and dorsally; three intercalary ribs.
Genitalia. Pygofer entirely dark brown to black; upper lobes not well developed, broadly rounded; lower lobe shorter than upper lobe, rounded, not prominent but distinct. Median lobe of uncus, black. Thecal pseudoparameres slender, apically straight and parallel. Claspers smooth, affiXed, curved downwards but not hooked.
Song patterns. Not recorded.
Description of female (Figs. 12–14). Thorax. Colouration similar to that of male.
Legs. Similar in colour to those of male.
Abdomen. Tergites similar in colouration to those of male with similar dense black hairs; abdominal segment 9 ochraceous with a pair of longitudinal near-dorsal black fasciae that eXtend to the anterior edge and ventrolaterally to mid length; dorsal beak black, terminally pointed; colouration of sternites similar to that of male. Opercula apically broadly rounded, not meeting, longer than meracantha, reaching margin of tympanum.
Genitalia. Ovipositor sheath black with long black hairs; eXtending one mm beyond the tip of abdominal segment 9 dorsal beak.
Distribution. Known only from one station located at Mont Humboldt in the south of New Caledonia main island.
Habitat and ecology. Found in the summit shrubbery vegetation of Mont Humboldt (1350m).
description: Published as part of Delorme, Quentin, 2018, Germalna, a new genus for the New Caledonian cicada previously assigned to the genus Melampsalta Kolenati, plus a complement to the description of the genus Rouxalna Boulard, with the description of two new species (Insecta: Hemiptera, Cicadoidea, Cicadidae) in Zootaxa 4377 (1), DOI: 10.11646/zootaxa.4377.1.5, http://zenodo.org/record/1163266