Leiopus (Carinopus) campbelli (Gressitt, 1937) comb. nov.

Figs. 23, 46, 68, 82, 96.

Distinguished from all other examined species of Leiopus from China by its small body size, colour patterns on pronotum and elytra, weak costae on elytra, lack of tufted tubercles on elytra (Fig. 23). Colour brownish with an oblique whitish transversal band on middle of elytra, interrupted by a narrow dark brown band below middle, and a few scattered brownish spots on elytra. Elytra smooth laterally but with 2 relatively weak costae medially, and a glabrous ridge near the base of elytra on each side of scutellum. Pronotum with a short and blunt spine on middle of each side, very weak anterolateral tubercles, and medially with fine and sparse punctures and light brown hairs forming 2 longitudinal bands laterally. Tarsomere I on hind legs as long as the remaining segments combined. Last abdominal segments slightly concaved, or notched, on the posterior margin. Separated from most species of Acanthocinus by antennomeres III–V not fimbriate beneath (there might be a few suberect hairs), short legs and short ovipositor in female. Colour pattern on pronotum and elytra somewhat similar to that in dark specimens of the European species L. nebulosus L. Legs short and antennae up to 1.5 x longer than body. Elytra covered with fine, sparse punctures.Male genitalia characters similar to Leiopus and not Acanthocinus . This species has therefore been transferred from Acanthocinus to Leiopus .

Examined HT (male): length 6.6 mm, width 2.5 mm. Aedeagus: Approx. 1.3 mm long, relatively slender, narrowed and acutely curved towards apex, dorsal ridge as wide as ventral ridge (Fig. 68). Crescent-shaped sclerites at proximal end of basal segment very slender, and fork-like median sclerite inside internal sac fine; surrounding intersegmental membrane with fine, square-shaped micro-reticulation (Fig. 46). Median sclerite inside the internal sac most similar to that of L. shibatai . Tegmen: Approx. 1.4 mm, parameres slender and flattened dorso-ventrally, well separated medially along inner margin and towards apex (Fig. 82). Apex evenly rounded along entire posterior margin, with fringes of short, yellowish hair well concentrated at edge of apex. No microreticulation on parameres. Base of tegmen extended and strongly curved dorso-ventrally towards the middle. Tergite VIII: Approx. 0.5 mm long, yellowish with fine pigmentation, and covered with short, very fine yellowish hairs distally towards the posterior margin (Fig. 96). Surface has no micro-reticulation.

Remarks: Only 2 specimens have been found (male HT and female PT). This species was collected in Hong Shan, Jiangxi Province of China, altitude 1000 m, 1936.06.25–29 (Fig. 99).