A review of the genus Platynectes from the Solomon Islands (Coleoptera: Dytiscidae: Agabinae)

Hájek Jiří, Šťastný Jaroslav, Hendrich Lars, Balke Michael
Acta Entomologica Musei Nationalis Pragae 63(1): 57-74, 2023
Published online: 12th March 2023
Views: 1391
Abstract: Seven new species of the genus Platynectes Régimbart, 1879 from the Solomon Islands are described: Platynectes barana sp. nov., P. mbaole sp. nov., P. popomanaseu sp. nov. (all from Guadalcanal), P. lunga sp. nov. (Guadalcanal and Savo), P. malaita sp. nov. (Malaita), P. makira sp. nov. (Makira) and P. owaraha sp. nov. (Makira and Owaraha). Platynectes insularis J. Balfour-Browne, 1939, described from Vanuatu and the Solomons, currently considered a junior subjective synonym of P. semperi Régimbart, 1899, is reinstituted as a valid species based on its morphology and a molecular analysis by Toussaint et al. (2017). The paratypes of P. insularis from the Solomons are shown to belong to a new species – P. owaraha sp. nov., and, thus, the distribution of P. insularis is restricted to Vanuatu. Habitus and male genitalia are illustrated for all seven new species and P. insularis. A checklist of Dytiscidae so far recorded from the Solomon Islands and Vanuatu is appended.
Key words: Coleoptera, Dytiscidae, Platynectes, taxonomy, new species, Solomon Islands, Vanuatu, Melanesia, Australasian Region
Papers
Centenary of the journal Acta Entomologica Musei Nationalis PragaeRevision of the plant bug genus Diognetus, with descriptions of thirteen new species from the Oriental and Eastern Palearctic Regions (Hemiptera: Heteroptera: Miridae)A review of the genus Platynectes from the Solomon Islands (Coleoptera: Dytiscidae: Agabinae)Review of the genus Cybister in China, with description of a new species from Guangdong (Coleoptera: Dytiscidae)New species and new records of minute moss beetles from East Africa (Coleoptera: Hydraenidae)Taxonomy of the Lathrobium nomurai group (Coleoptera: Staphylinidae) from Northern Kyushu, Japan, with descriptions of two new speciesA new, putatively semisubterranean, Rhithrodytes diving beetle from southwestern Sardinia (Coleoptera: Dytiscidae)A revision of the genus Ivanauskiella (Lepidoptera: Gelechiidae)Feabatrus gen. nov., a conspicuous new genus of Batrisitae from Myanmar and China (Coleoptera: Staphylinidae: Pselaphinae)New and little-known species of the genus Cyclotoma from China (Coleoptera: Endomychidae)Definition of the tribe Metrodorini (Orthoptera: Tetrigidae) with notes on biogeography and evolution of Metrodorinae and CladonotinaeRevision of the genus Allorhynchium in the Philippine Islands (Hymenoptera: Vespidae: Eumeninae)Two new micropterous species of the genus Sunius from Andalusia (Spain) (Coleoptera: Staphylinidae: Paederinae)Systematic study of the subgenus Aphantorhaphopsis of the genus Siphona in East Asia and the Oriental Region (Diptera: Tachinidae)