Nidificação e forrageamento de Centris (Ptilotopus) scopipes Friese (Hymenoptera, Apidae)

Maria Cristina Gaglianone
2001 Revista Brasileira de Zoologia  
Nesting biology and foraging behavior of Centris (Ptilotopu~) scopipes Friese (Hymenoptera, Apidae). Celltris (Ptilotopu~) are large bees and important pollinators in the Neotropical region . Its biology and behavior is still poorly known and only a few observations have been published. In this pape r, observations on the biology ofe. (Plilolopus) scopipes Friese, 1899, a species that occurs in the "ceITados" of Brazil, are presented. The study was conducted in the Estação Ecológica de Jataí,
more » ... ológica de Jataí, in Luiz Antônio, São Paulo, during the active period ofthe adults (November through April). Females collected pollen from flowers ofSolanaceae and Caesalpiniaceae, by vibration, and floral oils trom Malpighiaceae belonging to the genera Byrsollima, Banisleriopsis, Stigmaphyllon and PeLmloa. Floral resources are carried in the hind leg scopae to the nests, which are excavated in the walls ofepigeous nests ofthe term ite Procornitermes araujoi Emerson, 1952 (Termitidae, Nasutitennitinae). The main tunnel entered the termite nest at an ascending angle ending in a vestibulum. Two parallel, veltical burrows fonning linear series ofcells descended from the vestibulum. The upper cell (the nearest to the nest entrance) was filled with soi!. This might represent a protection against parasites. During the study, one female of Acanlhapus excellens Schrottky, 1902 (Apidae, Ericrocidini), a cleptoparasitic bee, was captured when leaving one ofthe nests. A male of C. scapipes emerged eleven months aner cell closure, suggesting a univoltine cycle for this species. KEY WORDS . Centridini, cerrado, !loral resources, Malpighiaceae, nests, phenology, termites As abelhas do subgênero Ptilotopus Klug, 1810 distribuem-se desde o Panamá até o Brasil , onde ocorre a maior parte das espécies. No Brasil têm sido encontradas em áreas de cerrado (GOTTSBERGER
doi:10.1590/s0101-81752001000500008 fatcat:5alfgelq4nce5p7fjsuqqbyqme