ABSTRACT
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.
Subject(s)
Animals , Bees , Brazil , DemographyABSTRACT
This study was conducted in the Chapada dos Guimarães National Park and in the Província Serrana of Mato Grosso state, from May 2003 to July 2005 and involved the use of chemical baits to attract male orchid bees. A total of 498 males were captured, of which 38 were Eulaema (Apeulaema) pseudocingulata Oliveira. Twenty-nine of these were collected in the national park and nine in the Província Serrana. E. pseudocingulata was reported as endemic to the Amazon Basin, however in the Platina Basin the species is sympatric to E. cingulata (Fabricius), a sibling species of similar morphology and color pattern but with a broader geographic distribution.
Em um estudo conduzido no Parque Nacional da Chapada dos Guimarães e na Província Serrana de Mato Grosso, iscas-odores foram utilizadas de maio de 2003 a julho de 2005 para atrair machos de Euglossini. Um total de 498 machos foi capturado, dos quais 38 eram machos de Eulaema (Apeulaema) pseudocingulata Oliveira. Foram capturados 29 machos no parque nacional e nove machos na Província Serrana. E. pseudocingulata foi recentemente descrita e, antes do presente trabalho, relatada como endêmica da Bacia Amazônica. Todavia, na Bacia Platina, ocorre em simpatria com E. cingulata (Fabricius), espécie similar na morfologia e no padrão de coloração, mas com ampla distribuição geográfica.
Subject(s)
Animals , Male , Bees , Brazil , DemographyABSTRACT
In a study conducted in the gallery forest of the Vale doVeu de Noiva in the Parque Nacional da Chapada dos Guimarães, Mato Grosso state, chemical baits were used to attract and sample male orchid bees. From September 2003 to July 2005, male euglossine bees were captured monthly, from 8:00 a.m. to 4:00 p.m. as they arrived at the baits. Of the 264 males captured, eight males belonged to Aglae caerulea Lepeletier & Serville, a cleptoparasitic euglossine species that presumably occurred only in the Amazon basin. Therefore, the occurrence of A. caerulea in this study area extends its geographical distribution range by approximately 2,400 km southwards in South America, as it is now recorded in both the Amazon and Platina basins.
Em um estudo conduzido em uma floresta de galeria do Vale do Véu de Noiva no Parque Nacional da Chapada dos Guimarães, MT, substâncias puras foram utilizadas para atrair e amostrar machos das abelhas das orquídeas. De setembro de 2003 a julho de 2005, uma vez por mês, das 8:00h às 16:00h, os machos foram capturados conforme eles chegavam às iscas-odores. Dos 264 machos coletados, oito eram Aglae caerulea Lepeletier & Serville, uma espécie cleptoparasítica com distribuição geográfica restrita à Bacia Amazônica. Portanto, a ocorrência de A. caerulea naquela área de estudo amplia aproximadamente em 2.400 km os limites para o sul da América do Sul, estando agora documentada sua presença tanto na Bacia Amazônica como na Bacia Platina.