A new genus and ten new species of jumping plant lice (Hemiptera: Triozidae) from Allocasuarina (Casuarinaceae) in Australia Author Taylor, Gary S. Author Jennings, John T. Author Purcell, Matthew F. Author Austin, Andy D. text Zootaxa 2011 3009 1 45 journal article 46929 10.5281/zenodo.278552 838af845-02e8-4e78-93f7-f1643e0e8b36 1175-5326 278552 Aacanthocnema casuarinae (Froggatt) Figs 6–13 , 16–18 , 136 ; Tables 1–8 Trioza casuarinae Froggatt, 1901 : 284 –285, pl. xv fig. 11, pl. xvi fig. 27. Aacanthocnema casuarinae (Froggatt) , Tuthill and Taylor 1955 : 252 –253, fig. 22. Types . AUSTRALIA , New South Wales : Type series: 2 3, 1Ƥ (dried) Manly, Froggatt, 22.ix.1894 , Casuarina , Type W.W.F. 1901 (ANIC); 13 (slide) [fore wing, hind leg, parameres, aedeagus], same data except Aacanthocnema casuarina (Frogg.) ( Type series), body in spirit [specimen in ethanol not seen] (ANIC); nymphs (dried, slide) Type W.W.F. 1901 (ANIC); 73, 4Ƥ (dried), same data (ANIC). Other material examined. AUSTRALIA . New South Wales : 2Ƥ (dried), McGarr's Creek, Sydney ( ANIC ); 1Ƥ (dried), Mittagong ( ANIC ); 33, 3Ƥ (dried), Sydney ( ANIC ); 53, 9Ƥ (dried), Sweetwater, Kain ( ANIC ); 5 3, 6 Ƥ (slide), Tolwong, NNE Nettiga (AM). Tasmania: 1 3, 1 Ƥ (slide) E Queenstown ( ANIC ). Description. Adult ( Figs 6–12 ). Colour [from dried specimens]: Male: general colour ochraceous to dark brown. Vertex dark brown; genal processes white to pale cream; antennal segments 1–2 brown to dark brown; segment 3 brown, darker apically; segments 4–10 progressively dark brown to black; pronotum with a pair of dark brown to black longitudinal submedial stripes; mesopraescutum darker laterally; mesoscutum and mesoscutellum dark brown; wings clear except for brown infuscation along veins R+M+Cu, M, M1+2, M3+4, Cu, Cu1a, Cu1b and distal portion of Rs; legs with dorsal dark brown infuscation; distal tarsal segments dark brown to black; abdominal tergites dark brown to black; proctiger, subgenital plate and parameres brown to dark brown. Female: as for male, except paler: vertex with a pair of brown markings in vicinity of fovea; pronotum with a pair of brown to dark brown longitudinal submedial stripes; mesopraescutum with a pair of brown submedial markings; mesoscutellum with a pair of orange-brown to brown longitudinal stripes; proctiger brown with dark brown infuscation in proximity to circum-anal pore ring and dark brown to black at apex; subgenital plate with dark brown apex. Structure: measurements and ratios as in Tables 1–5. Antennae short, 1.33–1.47 times width of head; genal processes moderately long, 0.65–0.84 times length of vertex, conical, apices separated, little-divergent; anterior margin of vertex rounded from dorsal aspect, delineated from genal processes by prominent ridge; vertex with distinct medial suture; pronotum with prominent anterior, medial node; thorax weakly arched, head wider than pronotum and mesoscutum, fore wings elongate with broadly rounded apex; Rs short, terminating well short of wing apex; vein M1+2 terminating little short of wing apex; cell m1 short, broadly triangular, m1 cell value 0.93–1.42; cell cu1 short triangular, cu1 cell value 1.15–1.52; vein Cu1a strongly arched (veins Cu1a and M proximal at closest point); radular areas elongate in cells m1 and m2 and cu1; male terminalia as in Figs 16–17 ; proctiger without lateral expansions; parameres short, broad basally from lateral aspect, weakly curved inward towards apices. Female terminalia as in Fig 18 ; proctiger broadly rounded, dorsal margin rather flat from lateral aspect; subgenital plate short, broadly rounded, triangular from lateral aspect. Nymph ( Fig 13 ): Measurements and ratios as in Tables 6–7 . Body brown with dark brown markings. Eyes reddish brown; head with submedial dark brown markings in vicinity of fovea; thorax with meso-and metathoracic depressions dark brown to black; lateral margins of fore wing pads dark brown; caudal plate with dark brown infuscation submedially and delineating margins of abdominal tergites. Body elongate; anterior margin of head rounded; dorsum of body with a distinct medial longitudinal ridge; caudal plate narrow with hind margin rounded. Distribution. Recorded from Sydney and adjacent localities in the Blue Mountains. Two specimens from a single locality near Queenstown in montane western Tasmania are tentatively attributed to Aa. casuarinae ( Fig. 136 ). Host plant. Froggatt (1901) recorded the host as Casuarina distyla (junior synonym of Allocasuarina distyla (Vent.) L. Johnson ). Allocasuarina distyla occurs as a dioecious shrub 1–3 m high in tall heath on sandstone ridges from Port Stephens to east of Cooma in south-western New South Wales . Specimens of Aa. casuarinae collected from Eucalyptus simmondsi (junior synonym of E. ambigua A.Cunn ex DC.) in Tasmania were undoubtedly from nearby Allocasuarina , although A. distyla is not recorded from Tasmania ( Wilson & Johnson 1989 ). Comments. Aacanthocnema casuarinae is very close morphologically to Aa. burckhardti (see Comments under Aa. burckhardti for diagnoses).