Red mason bee
Osmia bicornis
insectView on iNaturalist
Solitary bee with metallic blue-black body. Nests in hollow stems; excellent spring pollinator for fruit trees and early wildflowers.
Plants that support Red mason bee
1 plants
Branching Phacelia
Phacelia ramosissima
perennial herb
Critical larval food provision during spring nesting period
Bay Area native