biostudies-literatureShaverdo HAustrian Science Fund FWFEuropean Research Council73-143https://www.ebi.ac.uk/biostudies/studies/S-EPMC6791902biostudies-literatureUnknown878Nine new species groups of <i>Exocelina</i> Broun, 1886 from New Guinea are introduced with keys to their representatives. Four groups are monotypic and include three new species: the <i>E. aipomek</i> group, the <i>E. koroba</i> group: <i>E. koroba</i> <b>sp. nov.</b>, the <i>E. mekilensis</i> group: <i>E. mekilensis</i> <b>sp. nov.</b>, and the <i>E. morobensis</i> group: <i>E. morobensis</i> <b>sp. nov.</b> The remaining five species groups include 18 species with 12 new species and one new subspecies: the <i>E. bacchusi</i> group: <i>E. akameku</i> <b>sp. nov.</b>, <i>E. oiwa</i> <b>sp. nov.</b>, <i>E. oksibilensis</i> <b>sp. nov.</b>, and <i>E. bacchusi herzogensis</i> <b>ssp. nov.</b>; the <i>E. jaseminae</i> group: <i>E. aseki</i> <b>sp. nov.</b>, <i>E. kailaki</i> <b>sp. nov.</b>, and <i>E. pseudojaseminae</i> <b>sp. nov.</b>; the <i>E. larsoni</i> group: <i>E. warahulenensis</i> <b>sp. nov.</b>; the <i>E. takime</i> group: <i>E. mianminensis</i> <b>sp. nov.</b>; and the <i>E. warasera</i> group: <i>E. haia</i> <b>sp. nov.</b>, <i>E. kobau</i> <b>sp. nov.</b>, <i>E. pulchella</i> <b>sp. nov.</b>, and <i>E. warasera</i> <b>sp. nov.</b> Diagnoses of five already described species of these groups are provided, as well as comparatives notes on all species. <i>Exocelina santimontis</i> (Balke, 1998) <b>syn. nov.</b> is a junior synonym of <i>E. aipomek</i> (Balke, 1998). Data on the distribution of the species are given, showing that most of the species of these groups occur in the Papua New Guinea.ZooKeysNine new species groups, 15 new species, and one new subspecies of New Guinea diving beetles of the genus <i>Exocelina</i> Broun, 1886 (Coleoptera, Dytiscidae, Copelatinae).PMC6791902P 31347P 24312-B17669609Balke MWarikar ELShaverdo HSurbakti SSagata KfalseNine new species groups, 15 new species, and one new subspecies of New Guinea diving beetles of the genus <i>Exocelina</i> Broun, 1886 (Coleoptera, Dytiscidae, Copelatinae).Nine new species groups of <i>Exocelina</i> Broun, 1886 from New Guinea are introduced with keys to their representatives. Four groups are monotypic and include three new species: the <i>E. aipomek</i> group, the <i>E. koroba</i> group: <i>E. koroba</i> <b>sp. nov.</b>, the <i>E. mekilensis</i> group: <i>E. mekilensis</i> <b>sp. nov.</b>, and the <i>E. morobensis</i> group: <i>E. morobensis</i> <b>sp. nov.</b> The remaining five species groups include 18 species with 12 new species and one new subspecies: the <i>E. bacchusi</i> group: <i>E. akameku</i> <b>sp. nov.</b>, <i>E. oiwa</i> <b>sp. nov.</b>, <i>E. oksibilensis</i> <b>sp. nov.</b>, and <i>E. bacchusi herzogensis</i> <b>ssp. nov.</b>; the <i>E. jaseminae</i> group: <i>E. aseki</i> <b>sp. nov.</b>, <i>E. kailaki</i> <b>sp. nov.</b>, and <i>E. pseudojaseminae</i> <b>sp. nov.</b>; the <i>E. larsoni</i> group: <i>E. warahulenensis</i> <b>sp. nov.</b>; the <i>E. takime</i> group: <i>E. mianminensis</i> <b>sp. nov.</b>; and the <i>E. warasera</i> group: <i>E. haia</i> <b>sp. nov.</b>, <i>E. kobau</i> <b>sp. nov.</b>, <i>E. pulchella</i> <b>sp. nov.</b>, and <i>E. warasera</i> <b>sp. nov.</b> Diagnoses of five already described species of these groups are provided, as well as comparatives notes on all species. <i>Exocelina santimontis</i> (Balke, 1998) <b>syn. nov.</b> is a junior synonym of <i>E. aipomek</i> (Balke, 1998). Data on the distribution of the species are given, showing that most of the species of these groups occur in the Papua New Guinea.2019-01-01T00:00:00Z20192026-06-16T03:21:35.455Z2019-10-30T08:22:24ZS-EPMC67919023163217710.3897/zookeys.878.37403