Abelhas euglossinae de barreirinhas, zona do litoral da baixada oriental maranhense

ABSTRACT

Male euglossine bees were collected in the savannas (Cerrado) of Barreirinhas, in the western coastal lowland zone of Maranhão State. Animals were baited with cineole, eugenol, methyl salicylate and benzyl benzoate. Nine species belonging to 4 genera were found. Euglossa cordata was the most abundant (63,31%), followed by Eulaema cingulata (17,80%), Eulaema nigrita (7,63%), Euglossa modestior (4,94%) and Eufriesea ornata (4,16%). The others Euglossa chalybeata, Euglossa fimbriata, Euglossa melanotricha and Exaerete smaragdina, were less frequently found, representing only 2,16% of the total sample (combined). The bees were active in both the rains and dry seasons, especially on the first. Cineole was the most attractive aromatic compound (78,2% of specimens and 8 species), followed by eugenol (19,9% and 5 species), benzyl benzoate (0,6% and 2 species) and methyl salicylate (1,3% and 1 species).

RESUMO

Machos de Euglossinac foram coletados nos cerrados da região de Barreirinhas, Zona do Litoral da Baixada Oriental Maranhense, com uso de cineol, eugenol, salicilato de metila e benzoato de benzila, como iscas. Foram encontradas 9 espécies distribuídas em 4 gêneros Euglossa, Eufriesea, Eulaema e Exaerete. As mais comuns foram Euglossa cordata (63,31%), Eulaema ungulata (17,80%), Eulaema nigrita (7,63%), Euglossa modestior (4,94%) e Eufriesea ornata (4,16%). As demais, Euglossa chalybeata, Euglossa fimbriata, Euglossa melanotricha e Exaerete smaragdina, foram menos freqüentes, representando juntas 2,16% da amostra total. As abelhas estiveram ativas nas duas estações, seca e chuvosa, sendo mais abundantes na última. Cineol atraiu 78,2% dos machos (8 espécies), eugenol, 19,9% (5 espécies), salicilato de metila 1,3% (1 espécie) e benzoato de benzila 0,6% (2 espécies).