Exocelina baliem sp. n., the only known pond species of New Guinea Exocelina Broun, 1886 (Coleoptera, Dytiscidae, Copelatinae)

By

Shaverdo, Helena
Hendrich, Lars
Balke, Michael

Type

Article

Date of Publication

2013

Original Publication

ZooKeys

Volume

304

Pages

83-99

Subjects

Australasia , Biogeography , Diving beetles , Exocelina , New Caledonia , New Guinea , new species , Phylogeny , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.304.4852

 

Abstract

Exocelina baliem sp. n. is described from the Baliem Valley in the Central Mountain Range of New Guinea (Papua Province, Indonesia).striolate elytra, different structure and setation of the male and female genitalia and tarsomeres, and inhabiting swampy ponds, the new species differs from all known New Guinea species, which have smooth elytra and are stream associated. It forms a monophyletic group with the Australian E. ferruginea (Sharp, 1882) and New Caledonian E. inexspectata Wewalka, Balke & Hendrich, 2010, based on shape of the paramere and structure of the male tarsi. Habitus, protarsomeres, and male and female genitalia are illustrated, comparing some structures with E. ferruginea and two New Guinea stream species. We briefly discuss the biogeographic relevance of this discovery.