Aacanthocnema luehmannii

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.