White grubs (Coleoptera, Melolonthidae) in the "Planalto Region", Rio Grande do Sul state, Brazil: Key for identification, species richness and distribution
Rev. bras. entomol
; 57(3): 271-278, July-Sept. 2013. ilus, graf, tab
Article
en En
| LILACS
| ID: lil-691394
Biblioteca responsable:
BR1.1
ABSTRACT
White grubs (Coleoptera, Melolonthidae) in the "Planalto Region", Rio Grande do Sul state, Brazil Key for identification, species richness and distribution. The objective of this study was to survey the occurrence and geographic distribution of white grub species (Coleoptera, Melolonthidae) in cultivated and non-cultivated fields of the "Planalto Region", Rio Grande do Sul state, Brazil and develop a key at genus-level. Twenty-eight species from 15 genera and three subfamilies were recorded Dynastinae, Melolonthinae and Rutelinae. The species or genera recorded for the first time in the state are Cyclocephala metrica, C. tucumana, Isonychus albicinctus, Liogenys bidenticeps, L. fusca, L. obesa and L. sinuaticeps, Paranomala violacea, as well as unidentified species of Amononyx, Dicrania, Leucothyreus, Macrodactylus, Plectris and Rhizogeniates. Among the species recorded, 23 were associated with winter crops. Only Cyclocephala metrica, Dyscinetus rugifrons, two species of Leucothyreus and one species of the tribe Sericini were not present in cultivated crop fields. Cyclocephala flavipennis and Diloboderus abderus occurred in most of the municipalities sampled, often associated with Plectris sp., C. modesta and C. putrida. The highest richness of melolonthids was concentrated in the northeast of the Planalto region.
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Tipo de estudio:
Diagnostic_studies
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Rev. bras. entomol
Asunto de la revista:
BIOLOGIA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Brasil