Acanthocasuarina diminutae
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Ordo: Hemiptera
Familia: Triozidae
Genus: Acanthocasuarina
Name
Acanthocasuarina diminutae Taylor – Wikispecies link – Pensoft Profile
- Acanthocasuarina diminutae Taylor, Gary S., 2011, Zootaxa 3009: 33-33.
Materials Examined
Types. AUSTRALIA, New South Wales:Holotype: 1 3 (slide) Pilliga Scrub, Borambitty Road, 31 °05.680’S149 ° 22.371 ’E, G.S. Taylor, 4.x. 2008, Allocasuarina diminuta, ABCL2008 583 (ASCU). Paratypes: 9 3, 10 Ƥ, 5 nymphs (2 slides), 2 3, 2 Ƥ (dried), 37 3, 23 Ƥ, same data as holotype (ANIC, QMBA, SAMA, WINC). Other material examined. New South Wales:1 Ƥ McGarr’s Ck, Sydney (ANIC).
Description
Description. Adult (Figs 84–91). Colour: Male: general colour pale with ochraceous to brown markings. Vertex pale with two pairs of small brown spots in vicinity of fovea; genal processes brown to dark brown; antennal segments 1–2 dark brown to black; segment 3 brown, darker apically; segments 4–10 dark brown to black; pronotum pale with a pair of dark brown submedial markings; mesopraescutum with a pair of indistinct broad triangular ochraceous markings anteriorly; mesoscutum with two pairs of light orange-brown to brown longitudinal submedial stripes; mesoscutellum pale; wings clear; wing veins R+M+Cu, R, and proximal portion of C, Rs, M and Cu distinctly pale, all wing veins darker distally; abdominal tergites brown to dark brown; anterior face of proctiger brown to dark brown, pale laterally; subgenital plate and parameres ochraceous to orange-brown; proximal segment of aedeagus dark brown to black, distal segment ochraceous to orange-brown; legs pale with dorsal dark brown markings; tarsi dark brown to black. Female: as for male, except with distinct orange infuscation throughout; genal processes pale to ochraceous; proctiger with proximal brown marking and brown infuscation in vicinity of circum-anal pore ring; subgenital plate with anterior brown markings; proctiger and subgenital plate with distinct internal black sclerotisation. Structure: measurements and ratios as in Tables 1–5. Antennae short, 1.05–1.23 times width of head; genal processes moderate in length, conical, apices separated, divergent; anterior margin of vertex rounded from dorsal aspect, delineated from genal processes by prominent ridge; vertex with weak medial suture; pronotum with prominent anterior, medial node; thorax weakly arched, head distinctly wider than pronotum and mesoscutum, fore wings elongate with broadly rounded apex; Rs long, mostly straight except distally, terminating well short of wing apex; vein M 1 + 2 terminating short of wing apex; cell m 1 short, broadly triangular, m 1 cell value 0.97–1.38; cell cu 1 short triangular, cu 1 cell value 1.14–1.52; radular areas thin, elongate in cells m 1, m 2 and cu 1; male terminalia as in Figs 100–101; proctiger without lateral expansions; parameres thin moderate in length, strongly curved inward towards apex. Female terminalia as in Fig. 102; proctiger short with dorso-posterior margin smoothly rounded from lateral aspect and a barely upturned blunt apical process; subgenital plate broad, triangular from lateral aspect. Nymph (Fig. 92) (exuvium): Body light-brown with dark brown markings. Head with extensive submedial dark brown infuscation; meso-and metathoracic depressions dark brown with extensive dark brown markings anteriorly and posteriorly; fore and hind wing pads with dark brown infuscation; caudal plate with extensive dark brown marking submedially. Body elongate; anterior margin of head weakly pointed medially; dorsum of body with a distinct medial longitudinal ridge; caudal plate with hind margin angled submedially and medially.
Etymology
Etymology. Named after the host plant, Allocasuarina diminuta.
Distribution
Distribution. Recorded from Pilliga Scrub in inland central New South Wales. One specimen from a locality near Sydney, New South Wales is tentatively attributed to Aa. diminutae (Fig. 139). Host plant. Recorded from Allocasuarina diminuta L. Johnson.Allocasuarina diminuta occurs as a 1–5 m shrub or small tree in heath and low open woodland in several disjunct areas in New South Wales from Pilliga Scrub to Temora, Capertree to Bathurst, Blackheath to Braidwood, and near Sydney and Eden (Wilson & Johnson 1989).
Discussion
Comments. See Comments under Ac. acutivalvis for diagnoses.
Taxon Treatment
- Taylor, Gary S.; Jennings, John T.; Purcell, Matthew F.; Austin, Andy D.; 2011: A new genus and ten new species of jumping plant lice (Hemiptera: Triozidae) from Allocasuarina (Casuarinaceae) in Australia, Zootaxa 3009: 33-33. doi
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