Coleoptera collected in a plantation of Eucalyptus urophylla S. T. Blake (Myrtaceae) in the region of Niquelandia, State of Goias, Brazil

Abstract

The objective of this work was to evaluate population fluctuation of species of the order Coleoptera in Niquelândia county, State of Goiás, Brazil in a plantation of Eucalyptus urophylla S. T. Blake (Myrtaceae). Insects were collected with five light traps every fifteen days from May 1992 to April 1993 and identified according to the literature and entomological collections at species and/or family levels. A total of 5,615 individuals of the order Coleoptera were collected, with 346 and 5,269 identified at species and family levels, respectively. The most abundant species were Premnobius cavipennis Eichhoff, 1878 (Coleoptera: Scolytidae) with 174 individuals what represented 50.29% of the total number of individuals identified by species followed by Cardiorhinus sp. (Elateridae) and Pinotus ascanius Mannerheim, 1929 (Coleoptera: Scarabaeidae) with 134 and 18 individuals and 38.73% and 5.20% of the total number of individuals of this group, respectively. The family Carabidae had the highest number of individuals and species with 58.19% of the individuals identified at family level, followed by Scarabaeidae and Anobiidae with 19.30 and 8.33%, respectively. Population peaks of Coleoptera species were registered in October and December 1992. UNITERMS: Beetles associated with eucalyptus, Population fluctuation