Lasconotus sculpturatus (Sharp, 1885)

(Figs 3 and 7)

Ithris sculpturata Sharp, 1885: 72, pl. 3, fig. 4.

Lasconotus sculpturatus: Löbl and Smetana 2008: 83; Sasaji 1985: 219 (key); Aoki 2009a: 7, fig. 10; 2009b: 126, fig. (p. 127).

Lasconotus sculptratus: Aoki 2012: 47, fig. 34, 34A, 34B; 2013a: 109, fig. 28.

Material examined. 1 ex . (JAC-10), Nara Park, Nara City, Nara Prefecture, Japan, 3 June 2017, T. Ito leg. 1 ex . ♂ (JAC-11, dissected and mounted on slides), Koseda-rindô, Kami-Yaku-cho, Yaku Island, Kagoshima Prefecture, Japan, 30 July 2007, K . Hosokawa leg .

Diagnosis. Body black, glossy, 2.70–2.85 mm in length; pronotum length 0.64–0.72mm; pronotum width 0.77–0.89 mm; elytral length 1.67–1.95 mm; elytral width 0.80–0.95 mm; PW/PL 1.21–1.27; EW/PW 1.04–1.07; EL/ EW 2.00–2.25; EL/PL 2.60–2.71. Antenna slender, terminal club consisting of three segments almost equal in size; third segment distinctly longer than fourth one (Fig. 3). Anterior angles of pronotum well produced, but not pointed at tip; front margin concave medially, four longitudinal carinae distinct and sharp, sublateral carinae nearly straight, admedian ones strongly sinuate; elytral ridges sharp and conspicuous, ridge 4 strongly inflated in apical part, ridges 3 and 5 vanishing apically. Sculpture on metasternum wholly developed; sculpture on ventrites irregular longitudinal stripes, connecting here and there (Fig. 7).

Distribution. Japan: Kyushu, Tsushima Island, Yaku Island, and Amami-Ôshima Island. Rare species.