Castanea-associate

Guides

• Andrena rehni

  Rehn's Miner Bee

  Andrena rehni is a solitary, ground-nesting miner bee native to eastern North America. The species is oligolectic, specializing on pollen from Castanea species including American chestnut and Allegheny chinkapin. Following the functional extinction of American chestnut due to chestnut blight, the bee became increasingly rare and was not documented for nearly a century until its rediscovery in 2018. It has since been recorded in multiple states after long absences.

  oligolecticsolitary-beeground-nestingpollen-specialistconservation-concernCastanea-associateforest-beerediscovered-species