This study was conducted in the Cotriguaçu district, situated on the bank of the Juruena River, in Mato Grosso state. The collects were carried out from August 22 to 25, 2007 with chemical baits to attract male orchid bees. The bees were captured on a daily basis, from 8 a.m. to 12 p.m. Of the 89 males captured three belonged to Eufriesea pulchra Smith. Before the present study, E.pulchra had been reported in the states of Pará, Amazonas, Amapá, (dubiously) São Paulo, and Maranhão. This occurrence extends its geographical distribution range by 900 to 2,000 km southwards in South America, as it is now recorded in the Amazon and Platina basins.
Apinae; orchid bee; Amazon forest
