Taxonomic revision of New Guinea diving beetles of theExocelina danaegroup, with the description of ten new species (Coleoptera, Dytiscidae, Copelatinae).
Ten new species ofExocelinaBroun, 1886 from New Guinea are described:Exocelina andakombensissp. n.,Exocelina garainasp. n.,Exocelina injiensissp. n.,Exocelina kabwumensissp. n.,Exocelina marawagasp. n.,Exocelina posmanisp. n.,Exocelina tekadusp. n.,Exocelina variratasp. n.,Exocelina wareagasp. n., andExocelina woitapensissp. n. All of them together with five already described species are united into the newly definedExocelina danae-group (withExocelina miriae-subgroup), a polyphyletic complex of related species with lateral setation on the median lobe. In the light of newly available material, all previously described species of theExocelina rivulus-group are considered to belong to a single species,Exocelina damantiensis(Balke, 1998), which is now placed into theExocelina danae-group, and three new synonyms are therefore proposed:Exocelina madangensis(Balke, 2001)syn. n.,Exocelina patepensis(Balke, 1998)syn. n., andExocelina rivulus(Balke, 1998)syn. n.Exocelina tarmluensis(Balke, 1998)syn. n. is a junior synonym ofExocelina danae(Balke, 1998). Redescription ofExocelina atratus(Balfour-Browne, 1939) is provided based on its type material. An identification key to all known species of the group is provided, and important diagnostic characters are illustrated. Data on the species distribution are given, showing that whilst most species are local endemics,Exocelina damantiensisis extremely widely distributed.
Naturhistorisches Museum, Burgring 7, A-1010 Vienna, Austria.
Helena
H
Shaverdo
Papua New Guinea Institute for Biological research (PNG-IBR), Goroka, Papua New Guinea.
Katayo
K
Sagata
SNSB-Zoologische Staatssammlung München, Münchhausenstraße 21, D-81247 Munich, Germany and GeoBioCenter, Ludwig-Maximilians-University, Munich, Germany.
Michael
M
Balke
Copelatinae; Dytiscidae; Exocelina danae-group; New Guinea; new species