Japanese Species of the Genus Lasconotus (Coleoptera: Zopheridae: Colydiinae), with Description of a New Species from Ishigaki-jima Island, the Ryukyu Islands Author Aoki, Jun-ichi text Species Diversity 2018 2018-05-25 23 1 69 74 http://dx.doi.org/10.12782/specdiv.23.69 journal article 7115 10.12782/specdiv.23.69 afc31c44-0e11-4da3-a5ad-59dbc47cf5ff 2189-7301 4585133 D46EC3E1-F1B1-4CF1-A16C-50B9336AD033 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 . Fig. 12. Distribution map of the four Japanese species of Lasconotus based on the collection data in Nakane (1963) , Sasaji (1985) , Narukawa (2000) , and Aoki (2009a , b, 2011, 2012, 2013a, b). 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.