Euglossinae bees of two areas of Terra Firme forest, near Manaus, Amazonas, Brazil were studied. During one year the collections were done fortnightly, using traps with eight kinds of scent baits. The traps were placed in the understory and in tree crowns. Some species showed a very clear vertical stratification in the forest. The comparison between the strata studied showed that the fauna of one understory is more similar to other than fauna of crowns and the similarity between fauna of understory and fauna of crown of the the two areaswas low. Some species were specialists while most were generalists in their choice of scent baits. Some species varied its preferences during the year.
Amazônia; Euglossinae; scent baits preferences; stratification