Krameria-specialist
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Centris caesalpiniae
Caesalpinia Oil-Digger
Centris caesalpiniae is a species of oil-collecting bee in the family Apidae, first described by Cockerell in 1897. It belongs to the tribe Centridini, a group of bees specialized in collecting floral oils rather than nectar. The species is active in spring and has been documented visiting flowers of Krameria and Acacia in desert habitats. It occurs in the warm deserts of North America, including the Chihuahuan Desert, where it contributes to the region's exceptional bee biodiversity.