The Australian Pentastirini (Hemiptera: Fulgoromorpha: Cixiidae) Author Löcker, Birgit Author Fletcher, Murray J. Author Larivière, Marie-Claude Author Gurr, Geoff M. text Zootaxa 2006 2006-08-14 1290 1290 1 138 journal article 1175­5334 1D47B077-34C7-4BC6-B22F-C5BE9B02EBD7 Ozoliarus semicircularis Löcker , sp. nov. ( Figs 21A–D , 42Q–U , 43A–B ) Type material Holotype , ♂ , AUSTRALIA , Qld : 7 km W Petford , 24.ii.1997 ( L.B. O’Brien ) ( ASCU HE029567). Etymology Named after the semicircular shape of the ventromedian process of the pygophore. Colour Body black, carinae paler, frons lateral with a light brown mark; legs mid to dark brown; forewing hyaline colourless with brown marks along crossveins, veins dark brown, tubercles concolorous with veins, pterostigma dark brown; abdominal sternites dark brown. Morphology Body length: ♂ 5.1 mm . Head: Vertex (total length) 2.1 times longer than wide; basal emargination rectangular (rarely acutely angled). Postclypeus with well­developed median carina. Rostrum surpassing hind coxae. Thorax: Hind margin of pronotum obtusely angled. Mesonotum with well­developed carinae. Forewing 3.2x longer than wide; costa with 4–6 tubercles; 7–8 apical cells. Male genitalia: Anal tube as in Figs 42Q–S ; pygophore and genital styles as in Figs 43A–B . Aedeagus ( Figs 42T–U ): Phallotheca with a large trifurcated spine (a) ventral; and a ventral ridge with two humps. Flagellum membranous without sclerotised spines. Remarks Oz. semicircularis differs from Oz. triangularis in the absence of spine (b) and spine (A).