Abelhas Euglossini (Apidae) de áreas de Mata Atlântica: abundância, riqueza e aspectos biológicos

Eugl ossine bees (Apidae) frem Atlantic Forest sites: abundance, richness, and bi ological aspects.Co llection data of Euglossinae males from Parque Estadual do Rio Doce (PERD) and Viçosa, both areas w ith remnants of Atlantic Rain Forest (Mata Atlântica) in Minas Gerais state, Brazil are presented.Comparisons made among three fragments with different sizes and states of di sturbance fi'om Viçosa showed difterences in abundance of most common spec ies and apparently, Eu/aema nigrita Lepeletir, 1841 can be an useful indicator of disturbed sites .Some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no tlow of individuais OI' species of one fi'agment to another, even when they are only I km apal1.15 species of euglossines were sampled in PERD, and the most abundant was Eu/aema cingu/ata (Fabricius, 1804).At Viçosa, 10 species were samp led, E. nigrita was the predominant one.Methyl sali cylate attracted no males at both sites, in spite of large numbers of species and individuais sampled using this bait in other regions.The majority ofspecies and indi viduais were collected in the rainy season.Only 0,58% ofsampled males carried orchid pollinia (Cataselum Richard, Cycnoches Lindley and Coryanthes Hook) on their bodies.Emergence data of [our species 01' Eug/ossa Latreille, 1802 reared from trap nests suggest lhat sex ralio in Euglossini is not a constant w ithin the lribe.A li sl of 57 eugloss ine spec ies now known to occur in Mata Atlântica are oftered.KEY WORDS.Apidae,