Difference between revisions of "Aacanthocnema luehmannii"
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{{Section|class=materials_examined|heading = Materials Examined|content=Other material examined. [[AUSTRALIA]], South [[Australia]]: from {{Taxon name|Allocasuarina luehmannii|''Allocasuarina luehmannii''}}: 1 3 (slide) 14 km E Bordertown (WINC).}} | {{Section|class=materials_examined|heading = Materials Examined|content=Other material examined. [[AUSTRALIA]], South [[Australia]]: from {{Taxon name|Allocasuarina luehmannii|''Allocasuarina luehmannii''}}: 1 3 (slide) 14 km E Bordertown (WINC).}} | ||
| − | {{Section|class=description|heading = Description|content=Description. Adult (Figs 43–50). Colour: | + | {{Section|class=description|heading = Description|content=Description. Adult (Figs 43–50). Colour: Male: general colour pale cream to ochraceous with orange-brown to brown markings. Vertex pale with thin black transverse line on anterior margin and a pair of pale brown spots in vicinity of fovea; genal processes with pale grey infuscation towards apices; antennal segments 1–2 ochraceous to brown; segment 3 darker apically; segments 4–10 dark brown to black; pronotum pale with a pair of pale brown lateral spots; mesopraescutum with a pair of short broad triangular markings confluent with anterior margin; mesoscutum with two pairs of orange-brown to brown longitudinal submedial stripes; mesoscutellum ochraceous; wings clear with anterior half of vein Cu 1 a distinctly suffused dark brown to black; legs pale with dorsal brown infuscation; fore- and mid-tarsi dark brown to black; hind basitarsi with dorsal infuscation, distal segment of hind tarsi dark brown to black; abdominal tergites with a broad dark brown to black longitudinal medial stripe, and a pair of thin dark brown longitudinal lateral stripes; proctiger and subgenital plate ochraceous; parameres with brown to dark brown apices; proximal segment of aedeagus dark brown to black, distal segment pale. Female: as for male, except with slightly paler markings; proctiger with dark brown to black infuscation confluent with lateral margins of circum-anal pore ring; subgenital plate with pale brown infuscation towards apex. |
Structure: measurements and ratios as in Tables 1–5. Antennae moderate in length, 1.60 times width of head; genal processes elongate, conical with rounded apices, anterior margin of vertex rounded from dorsal aspect, delineated from genal processes by prominent ridge; vertex with weak medial suture; pronotum with weak anterior, medial node; thorax weakly arched, head little wider than pronotum and mesoscutum, fore wings short with broadly rounded apex; Rs short, 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 0.70–0.86; cell cu 1 short triangular, cu 1 cell value 1.03–1.18; vein Cu 1 a weakly arched; radular areas prominent, elongate triangular in cells m 2 and cu 1; male terminalia as in Fig 60–61; proctiger long, thin, without lateral expansions; parameres short, with basal expansion, strongly incurved towards apices. Female terminalia as in Fig. 62; proctiger short broad with angular dorso-posterior margin from lateral aspect; subgenital short, broadly rounded, triangular from lateral aspect. | Structure: measurements and ratios as in Tables 1–5. Antennae moderate in length, 1.60 times width of head; genal processes elongate, conical with rounded apices, anterior margin of vertex rounded from dorsal aspect, delineated from genal processes by prominent ridge; vertex with weak medial suture; pronotum with weak anterior, medial node; thorax weakly arched, head little wider than pronotum and mesoscutum, fore wings short with broadly rounded apex; Rs short, 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 0.70–0.86; cell cu 1 short triangular, cu 1 cell value 1.03–1.18; vein Cu 1 a weakly arched; radular areas prominent, elongate triangular in cells m 2 and cu 1; male terminalia as in Fig 60–61; proctiger long, thin, without lateral expansions; parameres short, with basal expansion, strongly incurved towards apices. Female terminalia as in Fig. 62; proctiger short broad with angular dorso-posterior margin from lateral aspect; subgenital short, broadly rounded, triangular from lateral aspect. | ||
Nymph. Unknown.}} | Nymph. Unknown.}} | ||
Latest revision as of 09:36, 22 June 2017
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Ordo: Hemiptera
Familia: Triozidae
Genus: Aacanthocnema
Name
Aacanthocnema luehmannii Taylor – Wikispecies link – Pensoft Profile
- Aacanthocnema luehmannii Taylor, Gary S., 2011, Zootaxa 3009: 23-23.
Materials Examined
Other material examined. AUSTRALIA, South Australia: from Allocasuarina luehmannii: 1 3 (slide) 14 km E Bordertown (WINC).
Description
Description. Adult (Figs 43–50). Colour: Male: general colour pale cream to ochraceous with orange-brown to brown markings. Vertex pale with thin black transverse line on anterior margin and a pair of pale brown spots in vicinity of fovea; genal processes with pale grey infuscation towards apices; antennal segments 1–2 ochraceous to brown; segment 3 darker apically; segments 4–10 dark brown to black; pronotum pale with a pair of pale brown lateral spots; mesopraescutum with a pair of short broad triangular markings confluent with anterior margin; mesoscutum with two pairs of orange-brown to brown longitudinal submedial stripes; mesoscutellum ochraceous; wings clear with anterior half of vein Cu 1 a distinctly suffused dark brown to black; legs pale with dorsal brown infuscation; fore- and mid-tarsi dark brown to black; hind basitarsi with dorsal infuscation, distal segment of hind tarsi dark brown to black; abdominal tergites with a broad dark brown to black longitudinal medial stripe, and a pair of thin dark brown longitudinal lateral stripes; proctiger and subgenital plate ochraceous; parameres with brown to dark brown apices; proximal segment of aedeagus dark brown to black, distal segment pale. Female: as for male, except with slightly paler markings; proctiger with dark brown to black infuscation confluent with lateral margins of circum-anal pore ring; subgenital plate with pale brown infuscation towards apex. Structure: measurements and ratios as in Tables 1–5. Antennae moderate in length, 1.60 times width of head; genal processes elongate, conical with rounded apices, anterior margin of vertex rounded from dorsal aspect, delineated from genal processes by prominent ridge; vertex with weak medial suture; pronotum with weak anterior, medial node; thorax weakly arched, head little wider than pronotum and mesoscutum, fore wings short with broadly rounded apex; Rs short, 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 0.70–0.86; cell cu 1 short triangular, cu 1 cell value 1.03–1.18; vein Cu 1 a weakly arched; radular areas prominent, elongate triangular in cells m 2 and cu 1; male terminalia as in Fig 60–61; proctiger long, thin, without lateral expansions; parameres short, with basal expansion, strongly incurved towards apices. Female terminalia as in Fig. 62; proctiger short broad with angular dorso-posterior margin from lateral aspect; subgenital short, broadly rounded, triangular from lateral aspect. Nymph. Unknown.
Etymology
Etymology. Named after the host plant, Allocasuarina luehmannii.
Distribution
Distribution. Recorded from two widely separated localities in inland south-eastern Queensland and inland south-eastern South Australia (Fig. 137). Host plant. Recorded from Allocasuarina luehmannii (R. Baker) L.A.S.Johnson (bull oak). Allocasuarina luehmannii occurs as a 5–15 m tree in woodland in non-calcareous soils from Mareeba, Queensland through central Queensland and New South Wales, to north-western Victoria and eastern South Australia to S of Bordertown (Wilson & Johnson 1989).
Discussion
Comments. This species has been collected rarely from only two, widely separated localities: three specimens from south-eastern Queensland, and one from south-eastern South Australia. Both series were collected from A. luehmannii. Aacanthocnema luehmannii is very close morphologically to Aa. dobsoni, Aa. huegelianae and Aa. torulosae (see Comments under Aa. dobsoni 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: 23-23. doi
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