White-haired Monk Longhorn

The White-haired Monk Longhorn (Eucera frater albopilosa) is a longhorned bee in the family Apidae, found in the San Francisco Bay Area.

This species has been found to frequent garden sites in California, but is not common or widespread.

Its flight season is from March to June.

White-haired monk longhorn bees are solitary bees that nest in the soil.

Females are generalists when foraging for pollen, and primarily focus on Erysimum, Nepeta and Lavandula at garden sites.