The University of Kansas Science Bulletin
Lasioglossum zephyrum is a small halictine bee, widely distributed in the United States. In Douglas County, Kansas, aggregations of nests were found in exposed, south-facing banks of streams or in horizontal ground near such banks. Males and females from a population on Tauy Creek had relatively larger heads than those a few miles away along the Wakarusa River. Factors influencing nest distribution in suitable habitats may include visual and chemical attraction to areas where nests have been established. The high rate of mortality of colonies throughout the season apparently was not due to any of the obvious parasites common at the nesting sites.
Batra, Suzanne W. T., "The Life Cycle and Behavior of the Primitively Social Bee, Lasioglossum Zephyrum (Halictidae)" (1966). Ba. Paper 110.
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