Subspecies

Osmia lignaria propinqua (Western blue orchard bee)

Osmia lignaria propinqua. Photo: (c) Steve Wells, some rights reserved (CC BY-NC)

iNaturalist • Wikipedia

Osmia lignaria, commonly known as the orchard mason bee or blue orchard bee, is a megachilid bee that makes nests in reeds and natural holes, creating individual cells for its brood that are separated by mud dividers. Unlike carpenter bees, it cannot drill holes in wood. O. lignaria is a common species used for early spring fruit bloom in Canada and the United States, though a number of other Osmia species are cultured for use in…

— Wikipedia

Sightings

Where in Humboldt

Discussion

PLEASE SHARE YOUR THOUGHTS ABOUT OSMIA LIGNARIA PROPINQUA, THE WESTERN BLUE ORCHARD BEE