Plagiodera Chevrolat 1836
Creators: name: Uebersax, Eva Sprecher-
name: Daccordi, Mauro
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Plagiodera

description: Notes on the biogeography of the Australian and Oceanic species of <i>Plagiodera</i>CHEVRO-LAT, 1836 <b>Remarks.</b> In the Oriental, Australian and Oceanic regions, the genus <i>Plagiodera</i> shows two distinct tracks, which can be dated: one in the Miocene and the other in the Pliocene-Pleistocene (MATILE 1990) (Fig. 62). As some species populate North India and Nepal (SPRECH- ER- UEBERSAX 2011), the temporal scale might be also old- er. Another hypothesis could be a more recent dispersal in North India and the Himalayan region from Southeast Asia. The diffusion of these species in the Pacific area might also have occurred in several successive waves. Thus, we agree with SANMARTIN &amp; RONQUIST (2004). <b> <i>Plagiodera</i> of the Oriental region and the Indochinese and Malayan subregion.</b> The species <i>P. atmanama, P. cupreata, P. rufescens</i> and <i>P. yunnanica</i> (Figs 72, 73, 74, 75, 76) are known only in the strictly limited Indochinese subregion, while in the Malayan subregion the single peculiar species <i>P. riparia</i> is known, which is also widespread in Bali, Flores, Sulawesi (Celebes), Aru and West New Guinea and, to be confirmed, into the Northern Territory of Australia. <b> <i>Plagiodera</i> of the Oriental region and the Papuan and Polynesian subregions.</b> In New Guinea, all groups of <i>Plagiodera</i> discussed in this study are present. <i>P. riparia</i> belongs to species group “A” to which <i>P. riparia</i> and <i>P. hiekei</i> n. sp. also belong. <i>P. riparia</i> is known from various localities in New Guinea: Adelbert Mts., Wanuma; north-east Kepilam (2600 m); Sorong, Salawatti; Biak Island; Kampong; NE Wum; Japen Island; Kontiunai; Iba; Wamena, Ibele river valley; Balien valley; Kainantu; Jayawijaya, Wamena. The species group “B” includes species known from Australia (<i>P. lownei, P. nitidipennis, P. amplipennis</i>) as well as from the Philippines (<i>P. philippinensis</i>, Figs 77, 78) and <i>P. chapuisi</i> from New Guinea Fly River, Woodlark (Murua), Noemandly I, Wakaiuna (Figs 79, 80, 81, 82). <i>P. cheni</i> (Fig. 83) belongs to species group “C” together with species that have colonized some Pacific archipelagos, such as <i>P. violaceipennis</i> in the Solomon Islands, Suva and Fiji, <i>P. fulvicollis</i> of the New Hebrides and Samoa with <i>P. samoana</i>. <b> <i>Plagiodera</i> of the Oriental region, subregion Philippines.</b> In this subregion, there are only two species of group “A” (<i>P. aerea</i> and <i>P. punctipennis</i>) and a single one (<i>P. philippinensis</i>) from group “B”. In Sumbawa, J. ACHARD identified a single female specimen using an unpublished taxon name. This specimen is conserved in the collections of NMP and has been studied by one of the authors (M.D.) and might fit within the range of variation of the widespread <i>P. riparia</i>. <i>P. philippinensis</i> and <i>P. punctipennis</i>, belonging to two different groups, both have the same coloration of entirely Spectrum Orange. <b> <i>Plagiodera</i> of the Australian Region.</b> Among the four species known for the Australian region and described as <i>Pseudoparopsis</i> BLACKBURN, 1899, three belong to group “B” (<i>P. lownei, P. nitidipennis, P. amplipennis</i>) and a single one, known from the Northern Territory, Mt. Bundey, 144 m, but not yet described, to group “A”. If this undescribed species is confirmed (a single female is in the collection MDC), it would be evidence of a population in the Australian region originating from the Malayan subregion. The other species known from a few localities in Oriental Australia and attributed to group “B” would indicate a population in the evergreen tropical forests proceeding from New Guinea via Cape York. The discovery of <i>P. fulvicollis</i> in New Caledonia needs confirmation. No <i>Plagiodera</i> are known from New Zealand.
description: Published as part of <i>Eva Sprecher- Uebersax &amp; Mauro Daccordi, 2016, Notes on the species of Plagiodera CHEVROLAT, 1836 of the Australian, Oceanic and Oriental regions, with a description of P. hiekei n. sp. (Coleoptera, Chrysomelidae), pp. 373-385 in Entomologische Blätter und Coleoptera 112 (1)</i> on pages 375-376, DOI: 10.5281/zenodo.3095951
description: {"references": ["MATILE, L. (1990): Recherches sur la systematique et l'evolution des Keroplatidae (Diptera Mycetophiloi- dea). - Memoires du Museum National d'Histoire Naturelle, Editions du museum, Zoologie 148: 1 - 682.", "SPRECHER- UEBERSAX, E. (2011): A new catalogue of Leaf beetles (Coleoptera Chrysomelidae) from Nepal. - Entomologica Basiliensia et Collectiones Frey 33: 375 - 512.", "SANMARTIN, J. &amp; RONQUIST, F. (2004): Southern Hemisphere Biogeography Inferred by Event-Based Models: Plant versus Animal Patterns. - Systematic Biology 53 (2): 261 - 243."]}