Systematic studies on leafhoppers (Auchenorrhyncha: Cicadellidae) are carried out with the aim of elucidating their biodiversity in the Grassland and Savanna Biomes. These insects are very common in grassland, with a large diversity of endemic species. Current emphasis is on the wingless forms that are most vulnerable to changes in their habitat. These insects can be used as indicators of grassland conditions, such as influence by grazing, burning, agricultural practices and rehabilitation. Routine work involves thrips and the pentatomorpha group of the true bugs.