Aacanthocnema burckhardti

Description. Adult (Figs 1 – 5). Colour [from dried specimens]: Male: general colour ochraceous to dark brown. Vertex with thin black anterior transverse band and a pair of dark brown markings in vicinity of fovea; genal processes white to pale cream; antennal segments 1 – 2 dark brown to black; segment 3 dark brown; segments 4 – 10 progressively dark brown to black; pronotum with a pair of dark brown to black longitudinal submedial stripes; mesopraescutum with a pair of dark brown submedial infused stripes; mesoscutum with 2 pairs of brown to dark brown longitudinal submedial stripes, lateral-most thinner; mesoscutellum with brown posterior infuscation; wings clear except for brown infuscation along fore wing veins R + M + Cu, M, M 1 + 2, M 3 + 4, Cu, Cu 1 a, Cu 1 b and distal portion of Rs; legs with dorsal dark brown infuscation; distal segments of mid and hind tarsi dark brown to black; abdominal tergites dark brown to black; anterior face of proctiger dark brown; subgenital plate dark brown, paler dorsally; parameres with dark brown to black apices. Female: unknown. Structure: measurements and ratios as in Tables 1 – 5. Antennae moderate in length, 1.66 – 1.74 times width of head; genal processes long, 0.76 – 0.81 times length of vertex, confluent to little-divergent towards apices; anterior margin of vertex relatively flat 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 slightly pointed apex; Rs short, terminating well short of wing apex; vein M 1 + 2 terminating little short of wing apex; cell m 1 triangular, m 1 cell value 1.19 – 1.24; cell cu 1 short triangular, cu 1 cell value 1.56 – 1.70; vein Cu 1 a weakly arched (veins Cu 1 a and M distant at closest point); radular areas elongate in cells m 1, m 2 and cu 1; male terminalia as in Figs 14 – 15; proctiger without lateral expansions; parameres short, broad basally from lateral aspect, weakly curved inward towards apices. Nymph. Unknown.