The Pan-Pacific Entomologist
The life history and nesting habits of Megachile (Eutricharaea) concinna Smith in southern Arizona were discussed by Butler and Wargo (1963). It was concluded at that time that M. concinna was not a potentially manageable pollinator in southern Arizona due to the reluctance of the bees to utilize artificial holes for nesting and the presence of a chalcid parasite. The successful management of M. rotundata (Fabricius) in northern areas, by Stephen (1962), Bohart and Knowlton (1964), and Hobbs (1964), promoted additional observations on M. concinna in 1964 reported in the present paper.
Butler, George D. Jr. and Ritchie, Philip L. Jr., "Additional Biological Notes on Megachile concinna Smith in Arizona" (1965). Bu. Paper 57.
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