Euparatettix obliquecosta, Zheng & Jiang, 2006

Zheng, Z. - M. & Jiang, G. - F., 2006, A checklist of Tetrigoidea (Orthoptera) from Zuojiang Area, southwestern Guangxi, China, with the description of two new species, Journal of Natural History 40 (19 - 20), pp. 1253-1258 : 1256-1257

Euparatettix obliquecosta sp. nov.

( Figures 3, 4 )

Female

Body small, narrow, and slender. Head projecting above pronotum. Vertex narrower, its width narrower than the width of an eye; anterior margin of vertex nearly round, slightly protruding beyond eyes; median carina obvious; in profile, vertex and front costa forming obtuse-rounded shape. Front costa straight before eyes, not concave, protruding as an arch between antennae; width of longitudinal furrow between antennae as wide as width of the coax of antennae. Antennae filiform, located on the lower one-third part between eyes. Eyes globose and projecting. Lateral ocelli placed on the middle of anterior margins of eyes. Anterior margin of pronotum straight; disc of pronotum with thin larger tubercles; median carina evident along its entire length; in profile, upper margin of pronotum undulate before shoulders, and straight behind shoulders; lateral carinae parallel on the prozona; humeral angles round, lateral ridge slightly contracting behind shoulders; part between humeral angles with a pair of slanting abbreviated carinae; hind process of pronotum long, coneshaped, reaching two-thirds the length of the hind femur. Humeral angle approximately arc-shaped. Posterior margin of lateral lobes of pronotum with two concavities; posterior angles slanting downward, apex of angles round. Elytra long ovate, apex round. Wings developed, reaching beyond the apex of pronotum. Fore- and mid-femora slender, their upper and lower margins straight; width of mid-femur distinctly wider than the width of visible part. Hind femur short and strong, antegenicular denticles and genicular denticles sharp. Outer side of hind tibia with eight spines, inner sides with seven spines. Length of first article of hind tarsus longer than the third; the first and second pulvilli below the first tarsus small, tip sharp; the third large, tip blunt. Length of upper valve of ovipositor three times the width, upper and lower ovipositors all with slender teeth. Length of subgenital plate larger than width, with triangle projecting in the middle.

Body dark brown. Wings black, hind tibia brown.

Male

Body smaller and more slender than the female. Subgenital plate short, cone-shaped, other structures and body color same as the female.

Body length 4.5, 5 mm, 6, 7.5 mm; pronotum length 9, 10 mm, 11, 12 mm; hind femur length 4, 4.5 mm, 5.5, 6 mm.

Material examined

Holotype: ♀, P. R. China, Guangxi: Banli, Chongzuo (22 ° 15 9 N, 107 ° 30 9 E), 130 m, coll. 21 August 2004 (G.-F. Jiang) . Paratypes: 3 „„, 4♀♀, same data as holotype .

This new species is similar to Euparatettix xizangensis Zheng (1992) , but differs in: (1) front costa before eyes not concave in profile; (2) part between shoulders with a pair of slanting abbreviated carinae; (3) hind process of pronotum reaching two-thirds of hind tibiae; (4) wings reaching beyond apex of hind tibia; (5) length of upper valve of ovipositor three times its width; and (6) hind tibia brown.

Figures

Figures 3, 4. Euparatettix obliquecosta sp. nov. (3) Body, dorsal view. (4) Body, lateral view.