A Study of the Biology of Epicharis (epicharoides) Picta Using Emergence-Traps
Journal of Hymenoptera Research/Journal of Hymenoptera research(2020)
Abstract
This study investigates the nesting habits ofEpicharis pictain a nest aggregation located in a fragment of the Atlantic forest in Southeastern Brazil. Ten emergence-traps were set up in this nest aggregation to standardize data collection of phenology, natural enemies, and sex ratio.Epicharis pictanests were in an area of 160 m² with a density of 41 nests/m². Nest and cell architecture are described.Epicharis pictais a protandrous, univoltine species with its emergence in this study occurring between 28 January and 15 April. We provide direct evidence of parasitism onE. pictabyRhathymus friesei,Tetraonyx sexguttataand T. aff. lycoides. The predatorApiomerus lanipeswas found to preyEpicharisfor the first time. We suggest the use of emergence-traps as tools to support studies of ground-nesting bees. In addition, we compile, update, and discuss data on the nesting biology of allEpicharissubgenera.
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Key words
Cleptoparasitism,Emergence-trap,Ground-nesting bees,Nest architecture,Solitary bees
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