Revision of the genus Intybia (Coleoptera, Malachiidae) from Japan Author Ikeda, Hiroshi 7100DA17-9D15-451B-AEE9-089A1FBF9025 urn: lsid: zoobank. org: author: 7100 DA 17 - 9 D 15 - 451 B-AEE 9 - 089 A 1 FBF 9025 & Corresponding author: hiroshi 0828 @ gmail. com hiroshi0828@gmail.com Author Yoshitomi, Hiroyuki 744FA6FC-2D84-41B7-8A6C-C1611CC68EE1 Email: hymushi @ agr. ehime-u. ac. jp & urn: lsid: zoobank. org: author: 744 FA 6 FC- 2 D 84 - 41 B 7 - 8 A 6 C-C 1611 CC 68 EE 1 hymushi@agr.ehime text European Journal of Taxonomy 2017 2017-06-20 331 1 31 journal article 22090 10.5852/ejt.2017.331 acf565ee-29ba-45e7-9ef3-d1e85dec9ae7 2118-9773 3829776 3FD5D922-B91F-42BB-9D7B-7DFB98841732 Intybia kishiii (Nakane, 1955) [Japanese name: Beni-obi-jôkai-modoki] Figs 1G , 2G , 4G , 5G , 6G , 8D , 9G , 10G , 11B Laius kishiii Nakane, 1955a: 33 [ type locality: Hozukyo, Kyoto ]. Laius kishiii – Nakane 1957: 13 . — Nakane 1963: 186 , pl. 93, fig. 17. — Satô 1985: 165 . — Nakane 1983: 164 . — Satô 1989: 366 . Intybia kishiii – Wittmer 1997: 191 . — Mayor 2007: 417 [catalogued]. — Yoshitomi & Hayashi 2011: 19 . Diagnosis Coloration of head, pronotum and elytra black with bluish luster; head narrow; eyes not prominent; elytral fascia reddish orange, widened at suture and lateral margins; gonoporal piece straight, slender, with straight basal projection; semi-gonoporal piece, ligula and spinous plate absent. Material examined JAPAN , Honshu: Gifu Pref. : 1 ♀ , Suhara, 24 Jun. 1956 , K. Ohbayashi leg. ( EUMJ ). – Okayama Pref. : 1 ♂ , Kurashiki-shi, Mizue, 17 Aug. 2007 , H. Suenaga leg. ( HSJ ). – Hiroshima Pref. : 1 ♀ , Miyoshi-shi, Miwaka, 13 Aug. 1980 , T. Inakura leg. ( EUMJ ); 1 ♂ , Mihara-shi, Yahata-chô, Honjo, 28 Jun. 2013 , H. Suenaga leg. ( HSJ ). JAPAN , Shikoku: Tokushima Pref. : 1 ♀ , Tsuda Beach, 10 Jul. 1967 , M. Sakai leg. ( EUMJ ). – Ehime Pref. : 1 ♂ , Ôzu, riverside of Hijikawa, Nakamura, 3 Jun. 2001 , M. and A. Sakai leg. ( EUMJ ); 1 ♀ , same data, 7 Oct. 2001 , Y. Kikuhara leg. ( EUMJ ); 1 ♂ , Shigenobu-gawa, 27 Jun. 2010 , R. Okano leg. ( EUMJ ). – Kochi Pref. : 1 ♂ , 1 ♀ , Nankoku-shi, estuary of Monobe-gawa, 29 Jun. 2008 , Y. Satô leg. ( EUMJ ); 2 ♀♀ , Monobe-gawa, Nishimachi, Noichi-chô, 2 Sep. 2002 , A. Sakai leg. ( EUMJ ); 1 ♂ , same data, 4 Oct. 2002 , C. Takahashi leg. ( EUMJ ); 1 ♂ , 3 ♀♀ , same data, 6 Jul. 2002 , C. Takahashi leg. ( EUMJ ); 1 ♀ , same data, 14 Aug. 2002 , D. Miura leg. ( EUMJ ); 1 ♀ , same data, 4 Oct. 2002 , A. Kitahara leg. ( EUMJ ); 1 ♂ , 1 ♀ , Tosa-shi, estuary of Niyodo-gawa, 1 Jul. 2003 , M. Sakai leg. ( EUMJ ); 1 ♂ , 2 ♀♀ , same data, 5 Oct. 2002 , T. Kurihara leg. ( EUMJ ); 2 ♀♀ , Niyodo-gawa, Kada-Campsite, Ino-chô, 5 Oct. 2002 , Y. Kikuhara leg. ( EUMJ ); 1 ♀ , same data, 13 Jul. 2002 , Y. Kikuhara leg. ( EUMJ ); 1 ♂ , same data, 13 Jul. 2002 , C. Takahashi leg. ( EUMJ ); 1 ♀ , Haruno-chô, Niyodogawa-Ohashi, 13 Jul. 2002 , C. Takahashi leg. ( EUMJ ). Redescription Male Body ( Fig. 1G ) slightly elongate, gently convex, shining, bearing suberect pallid setae, sparsely covered with long erect setae. Coloration of head, antennomeres IV–XI, pronotum, elytra and legs black with bluish luster; antennomeres I–III reddish yellow; maxillary and labial palpi yellow; elytral fascia reddish orange. Head narrowed anteriorly, with a deep longitudinal sulcus in middle, minutely punctate; eyes rather large, oval, not prominent; HL/HW 0.88–1.16 (1.00). Antennae ( Fig. 4G ) long, reaching base of elytra; antennomere III ( Fig. 6G ) subtrapezoidal, deeply concave in dorso-mesal portion; L/W = 0.81; approximate ratio of each antennomere (n = 1) as 7.0: 1.0: 6.5:2.5: 2.3: 2.3: 2.5: 2.5: 2.5:2.5: 3.7. Pronotum convex, closely punctate in anterior parts, densely so in lateral parts; PW/PL 1.00–1.16 (1.07). Elytra oblong-ovate, slightly broadened posteriorly, rather coarsely and closely punctate in middle, finely and sparsely so at base and before apex; elytral fascia situated just before middle, widened at suture and lateral margins; EL/EW 1.47–1.71 (1.59); EL/PL 2.70–3.24 (2.94); EW/PW 1.53–1.89 (1.69); TL/EW 2.43–2.78 (2.53). Legs rather slender. Aedeagus about 0.85 mm in AL. Gonoporal piece ( Figs 8D , 10G ) straight, slender, with straight basal projection, 0.53 mm in GL; GL/AL 0.49. Semi-gonoporal piece, ligula and spinous plate absent. Spinous area ( Fig. 9G ) densely covered with short spines. Female Similar to male in general appearance ( Fig. 2G ); coloration of antennae yellow, with apical 7 segments black; HL/HW 0.77–1.07 (0.89); PW/PL 0.95–1.21(1.07); EL/EW 1.42–1.82 (1.55); EL/PL 2.69–3.48 (2.99); EW/PW 1.53–2.03 (1.81); TL/EW 2.26–2.81 (2.47). Antennae ( Fig. 5G ) long; antennomere III short, distinctly expanded laterally, shallowly concave in dorsal portion, L/W = 2.00; approximate ratio of each antennomere (n = 1) as 5.0: 1.0: 3.3: 2.5: 2.2: 2.0:2.2: 2.0: 2.2: 1.8: 3.2. Measurements Male (n = 8): TL 3.15–3.65 (3.38) mm; HL 0.49–0.71 (0.58) mm; HW 0.55–0.61 (0.57) mm; PW 0.70–0.86 (0.77) mm; PL 0.62–0.77 (0.71) mm; EL 1.92–2.22 (2.09) mm; EW 1.19–1.50 (1.32) mm. Female (n = 19): TL 3.08–4.20 (3.58) mm; HL 0.50–0.68 (0.57) mm; HW 0.56–0.70 (0.65) mm; PW 0.69–0.90 (0.80) mm; PL 0.63–0.83 (0.75) mm; EL 1.88–2.85 (2.25) mm; EW 1.22–1.70 (1.45) mm. Distribution ( Fig. 11B ) Japan (Honshu, Shikoku, Kyushu); Korea . Remarks This species is distinct in having a narrow head and eyes that are not prominent. Biological notes This species inhabits grasslands at riversides.