Laccobius (Glyptolaccobius) moriyai Kamite, Ogata & Hikida, 2007

Gentili, Elio & Fikaček, Martin, 2009, Taxonomic notes on Laccobius, subgenus Glyptolaccobius, with new records and description of four new species (Coleoptera: Hydrophilidae), Acta Entomologica Musei Nationalis Pragae 49 (2), pp. 607-623 : 616

Laccobius (Glyptolaccobius) moriyai Kamite, Ogata & Hikida, 2007

( Figs. 4 , 8 )

Type locality. Japan, Honshu Island, Yamagata Prefecture, Asahi-Mura, Arasawa.

Type material (not examined). HOLOTYPE: J ( ELEU): ‘Arasawa, Asahi-Mura, Yamagata Pref., H. Moriya leg. 23-IX-2004 ’. PARATYPES: 4 spec., same data as holotype. Length 2.30–2.50 mm ; width 1.40–1.50 mm.

Additional material examined: JAPAN: HONSHU ISLAND: Yamagata Pref., Arasawa-dam, Tsuruoka-shi, T. Ikeda leg. 16.viii.2008, 1 J 1 ♀ ( MSNV, NMPC).

Differential diagnosis. Laccobius moriyai belongs to a group of species with curved hind tibiae, shining black elytra with longitudinal rows of punctures of which only the first one is sulciform. The combination of uniformly black dorsal colouration and apically strongly widened apex of the median lobe is not found in any other species of Glyptolaccobius .

Distribution. Laccobius moriyai is the first representative of the subgenus Glyptolaccobius occurring in the Palaearctic Region. So far the species is known only from the environs of the Arasawa Dam in the Yamagata Prefecture in Japan (Honshu island).

Figures

Figs. 4–6. Aedeagus (a – dorsal view, b – ventral view, c – lateral view). 4 – L. moriyai Kamite, Ogata & Hikida, 2007; 5 – L. pluvialis Gentili, 2006; 6 – L. sipeki sp. nov. Scale bar: 0.25 mm.

Figs.7–10. Habitus of Glyptolaccobius species.7 – L. guttalis sp. nov., male, holotype; 8 – L. moriyai Kamite, Ogata & Hikida, 2007, female; 9 – L. josefi sp. nov., male, paratype; 10 – L. sipeki sp. nov., male, holotype.