The Florida Entomologist
Females of the solitary sweat bee, Augochlora pura (Say), sometimes form aggregations of up to several hundred individuals. These aggregating bees are attracted to filter paper conditioned with odor of conspecific females and they assemble at and lick NaCl solutions presented to them on paper in the field.
Barrows, Edward M., "Aggregation Behavior and Response to Sodium Chloride in Females of a Solitary Bee, Augochlora Pura (Hymenoptera: Halictidae)" (1974). Ba. Paper 66.
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