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-Coleopteran diversity was studied in three physionomies of Cerrado lato sensu in Brasília-DF: campo de murundum (1), campo sujo (2) and cerrado sensu stricto (3). In each area, insects were collected by sweep sampling on 2,000 m in each vegetation type. A total of 1,044 specimens of 155 species, distributed in 15 families were collected. The abundance varied from 1 to 441 specimens/species, with most species represented by a single specimen. We found a low faunistic similarity between areas, with high percentage of species restricted to only one area. The diversity index (Shannon -H'=1,87; H'=4,16; H'=3,17) obtained for the areas 1, 2 and 3, respectively, suggest that the species are not homogeneously distributed. The values obtained for body size (1,0 to 11,0 mm) showed most species and specimens were smaller than 5 mm.

Foraging habitats as well as the tluctuations in vespid species' abundance in Mato Grosso State, Brazil, were deterrnined,t hrough sampling effon per hour per collector in four cerrado sensu lato habitats," campo úmido" (Cu)," campo sujo" (es), "cerrado sensu stricto" (Css), and "gallery forest" (Mg), during four periods consisting of two dry (August 1988 and June 1989) and two wet (October and December 1988) season periods. For "campo úmido", sorne species seern to be highly seasonal, either in the dry or wet seasons, whereas very few species occur year-round. The abundance, species composition and richness varied between habitats types and between seasons