New species of diving beetles in the subgenus Platynectes s. str. from the Guiana Shield (Coleoptera: Dytiscidae: Agabinae)

Gustafson Grey T., Short Andrew E. Z., Miller Kelly B.
Acta Entomologica Musei Nationalis Pragae 56(1): 79-102, 2016
Views: 60
Abstract: The Neotropical species of Platynectes Régimbart, 1879 sensu stricto (Coleoptera: Dytiscidae: Agabinae: Platynectini) are arranged into three newly proposed species groups based on the coloration of the venter: the P. submaculatus species group, the P. agallithoplotes species group, and the P. nigerrimus species group. The species of the P. submaculatus group and P. agallithoplotes group are treated in detail including the description of five new species: P. agallithoplotes sp. nov. (Venezuela), P. elaskanaima sp. nov. (Venezuela), P. garciai sp. nov. (Venezuela, Guyana), P. meru sp. nov. (Venezuela) and P. tafelbergensis sp. nov. (Suriname). The lectotype is designated for Agabus decemnotatus Aubé, 1838, and the species is, together with Platynectes submaculatus (Laporte, 1835) redescribed based on the recently collected material. For each species of the P. agallithoplotes group and P. submaculatus group a dorsal habitus, illustration of the median lobe of the aedeagus, distribution maps, and habitat photos are figured. Keys to the species groups and species of the P. submaculatus group are included. A checklist to the species of Neotropical Platynectes sensu stricto is provided.
Key words: Coleoptera, Dytiscidae, aquatic beetle, new species, description, taxonomy, French Guiana, Suriname, Venezuela, Neotropical Region
Papers
Celebrating 70th birthday of RNDr. Svatopluk Bílý, CSc.Svatactesis gen. nov., a new genus for Polyctesis johanidesi with notes on the tribe Polyctesini (Coleoptera: Buprestidae: Polycestinae)Two new species of Sphenoptera from South-West Asia (Coleoptera: Buprestidae: Chrysochroinae)Melobasis bilyi, an interesting new species of the M. pusilla species-group from Queensland, Australia (Coleoptera: Buprestidae)Chrysobothris bimaculata (Coleoptera: Buprestidae), a new species from Jamaica, with a key to the genus in JamaicaA new species of Chrysobothris (Coleoptera: Buprestidae) from Oaxaca, MexicoRedeicephala taylori, a new genus and species of Reduviidae from New Guinea, with notes on a few morphological features of the Tribelocephalinae (Hemiptera: Heteroptera)A new species of Ambunticoris from Sulawesi (Hemiptera: Heteroptera: Miridae)KMENT P. 2015: Two new genera of Madagascan Pentatominae (Hemi­ptera: Heteroptera: Pentatomidae). Acta Entomologica Musei Nationalis Pragae 55(2): 591–624.Description of nymphs and additional information on Nabis ashworthi (Hemiptera: Heteroptera: Nabidae) from Patagonia, ArgentinaNew species of Winklerites from eastern Serbia (Coleoptera: Carabidae: Trechinae)New species of diving beetles in the subgenus Platynectes s. str. from the Guiana Shield (Coleoptera: Dytiscidae: Agabinae)Exocelina ransikiensis sp. nov. from the Bird’s Head of New Guinea (Coleoptera: Dytiscidae: Copelatinae)Taxonomy, larval morphology and cytogenetics of Lihelophorus, the Tibetan endemic subgenus of Helophorus (Coleoptera: Hydrophiloidea)A new species of Hydrobiomorpha from iSimangaliso Wetland Park, South Africa (Coleoptera: Hydrophilidae)Establishment of Cylominae Zaitzev, 1908 as a valid name for the subfamily Rygmodinae Orchymont, 1916 with an updated list of genera (Coleoptera: Hydrophilidae)Primary chaetotaxy and larval morphometry of Phaenonotum exstriatum and Dactylosternum cacti (Coleoptera: Hydrophilidae)A new species of the genus Cyparium from northern Sulawesi, Indonesia (Coleoptera: Staphylinidae: Scaphidiinae)Description of a blind and flightless species of Thinobius from South Africa (Coleoptera: Staphylinidae: Oxytelinae)The genus Bolbelasmus in the western and southern regions of the Mediterranean Basin (Coleoptera: Geotrupidae: Bolboceratinae)A new species of the genus Lycocerus from Taiwan (Coleoptera: Cantharidae)Three new Bruchidius species from Eastern and Southern Africa (Coleoptera: Chrysomelidae: Bruchinae)Taxonomic and nomenclatural changes in Cassidinae (Coleoptera: Chrysomelidae)A review of Japanese Encyrtidae (Hymenoptera), with descriptions of new species, new records and comments on the types described by Japanese authorsA new Afrotropical species of Microdontinae, provisionally placed in Paramixogaster (Diptera: Syrphidae)The second species of Acartophthalmites from Baltic amber (Eocene), with notes on the relationships of the genus (Diptera: Acalyptrata)Catalogue of type specimens of Sternorrhyncha (Hemiptera) deposited in the National Museum, Prague, Czech Republic