Diversity of Scolytinae (Coleoptera: Curculionidae) in different landscapes in northern Brazil

Abstract

A survey of beetle assemblages of the subfamily Scolytinae was conducted in habitat gradients ranging from primary to secondary forests, cocoa plantations, and pastures in the Amazonian biome. Sampling was carried out in 2015, during February/March (rainy season), June (intermediary season), and September/October (dry season). A total of 4,534 Scolytinae were captured, comprising four genera and nine species. The most abundant species were Xyleborus affinis and Xyleborus volvulus, representing approximately 34% and 31% of the total abundance, respectively. Species of Scolytinae in general showed seasonality and greater abundance and richness in regions with greater coverage of plant litter.

Keywords: Amazon, biodiversity studies, habitat preference, insects.