A taxonomic review of the Oriental Laccophilus javanicus species group (Coleoptera: Dytiscidae) Author Hájek, Jiří Department of Entomology, National Museum, Cirkusová 1740, CZ- 193 00 Praha 9 – Horní Počernice, Czech Republic jiri_hajek@nm.cz Author Brancucci, Michel Naturhistorisches Museum, Basel, Switzerland text Raffles Bulletin of Zoology 2015 2015-08-06 63 309 326 journal article 55750 10.5281/zenodo.5385198 c7f95b94-53f8-420d-97c5-4e27d7c211bf 2345-7600 5385198 AC7F1491-CD89-4F10-9D61-55354B55E368 Laccophilus javanicus Régimbart, 1899 ( Figs. 8 , 25 ) Laccophilus javanicus Régimbart, 1899: 266 (original description); Brancucci, 1983: 252 (description, new records). Type locality. Java , monts Tengger , dans la région orientale, à 2000 metres d’altitude [= Indonesia , East Java , Tengger Mts.]. Material examined. 61 specimens . INDONESIA : Bali : 23 ex. , Telaga forest , 23 April 2011 ( MZBC , NMPC , ZSMG ) ; 2 ex. , Buleleng Reg. , 5 SW Busungbiu , Telaga protected forest, rock pool with leaves, ca. 700 m , 22 October 2013 , coll. G. Wewalka ( ZSMG ) . Java : 1 male , G. Slamat [ Gunung Slamet volcano], April 1917 , coll. F.C. Drescher ( NMPC ) ; 1 ex. , Wynkoopsbay , February 1937 ( IRSNB ) ; 1 female , Baturaden , 1 August 1983 , coll. N. Nieser ( NBCL ) ; 2 ex. , Baluran National Park , 600 m , 16–19 April 1996 , coll. R. Zajíček ( NHMB ); 1 female , Tretes , 6. August 1983 , coll. N. Nieser ( NBCL ) ; 1 female , 50 km S Surabaya , Tretes , Kekek Bodo WF, 800 m , 20 September 1995 , coll. H. Schillhammer ( NHMW ) ; 2 females , Baluran Nat. Park , Bilik env., 0–200 m , 12–18 April 1996 , coll. S. Jákl ( NMPC ) ; 3 ex. , Java Barat , Gunung Salak–Halimun , 06°42.272S , 106°41.157E , 980 m , 20 October 2009 ( MZBC , ZSMG ) . Lombok : 7 ex. , Tetebatu , 7. February 1988 , coll. M.A. Jäch ( NHMW ) ; 1 female , Senaro, N slope of [Gunung] Rinjani , 1100 m , 2–5 February 1994 , coll. Bolm ( SMNS ) ; 12 ex. , Senaru area , 08°19.326S , 116°24.989E , 834 m , 23 April 2011 ( MZBC , NMPC , ZSMG ) . INDONESIA or MALAYSIA : 1 ex. , Borneo ( ZSMG ). Diagnosis. Medium sized, elongate oval species (body length 4.0– 4.4 mm ). Elytra with elytral subbasal testaceous band complete, its anterior margin almost rectilinear ( Fig. 8 ). Apical part of median lobe rather long, in lateral view with dorsal side only very slightly curved ( Fig. 25 ). Distribution. Laccophilus javanicus is recorded from the Indonesian Islands of Java , Bali and Sumbawa ( Brancucci, 1983 ; Hendrich & Balke, 1995 ). We here add records from Lombok Island ( Fig. 41 ). However we question the occurrence of L. javanicus on Sumbawa. The known specimen, a female in NHMB, differs in elytral sculpture and colouration; it probably represents another species, but a single female cannot be reliably identified.