A genus of solitary bees, also called mining bees or cellophane bees, known for nesting in the ground and secreting cellophane-like lining in their burrows.
From Modern Latin genus name, likely from Greek 'kolla' (glue) + Latin '-etes' (suffix for agent), referencing the bee's ability to secrete a gluey, waterproof substance for nest lining.
Colletes bees are nature's engineers—they literally invented a biological plastic millions of years before humans did, using secretions to waterproof underground nests so eggs survive flooding.
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