Characterization of Geometridae family (Insecta: Lepidoptera) associated with different forest fragments in Cotriguaçu, Mato Grosso State, Brazil

Abstract

The objective of this study was to collect, identify and carry out a faunistic characterization of Geometridae family in Cotriguaçu county, Mato Grosso State, Brazil in different forest fragments. The sampled sites were: Tectona grandis plantation; mixed stand formed by Ficus spp., Astronium sp., Copaia Jacaranda, Syzygium jambolanum and Aspidosperma sp., initial forest regeneration, riparian forest and native forest. The samples were collected from July 2007 to June 2008. In each site, three light traps were placed at 1.5 m above the soil. It was used the model Luiz of Queiroz, with lights twice a month from 6:00pm to 6:00am. The faunistic index of dominance, frequency, abundance and constancy were determined. It was collected 387 individuals, divided in 10 genus and 25 species. The mixed plantation presented the highest number of individuals collected. However, in the native forest it was observed the higher number of species and diversity. The species Semiothisa sp.3, Synchlora gerularia e Synchlora sp.2 were dominant in all studied sites.