species 3,341 observations
Horn-faced Mason Bee
Osmia cornifrons
Field notes
Osmia cornifrons, also known as the horned-face bee, is a species of solitary bee indigenous to Northern Asia. Physically, this species of bee is recognized for its horn-like extensions originating from its lower face. Populations of O. cornifrons have been recorded in multiple locations, including Japan, Korea, China, and Russia. O. cornifrons are more docile as compared to other species of bees and are less prone to sting when aggravated.
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Range
Greener is more native, amber more introduced; paler is less certain. How this was decided

