Dufourea mulleri
(Cockerell, 1898)
Phacelia Shortface
Dufourea mulleri is a small sweat bee in the Halictidae, commonly known as the Phacelia Shortface. It is a with a documented association with plants in the Phacelia. The occurs in North America and is one of the more frequently observed members of its genus.

Pronunciation
How to pronounce Dufourea mulleri: /dʊˈfʊəriə ˈmʌləri/
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Identification
Belongs to the Dufourea, characterized by a short () relative to other halictid bees. Specific diagnostic features for D. mulleri are not well documented in available sources. Separation from other Dufourea requires examination of subtle morphological characters, likely including male genitalia and female scopal hairs.
Images
Distribution
North America
Host Associations
- Phacelia - 'Phacelia Shortface' indicates documented association with this plant
Ecological Role
, with apparent specialization on Phacelia plants
Similar Taxa
- Other Dufourea species members share short facial structure; -level identification requires detailed morphological examination
More Details
Common name origin
The 'Phacelia Shortface' combines the plant Phacelia (indicating association) with 'Shortface' (referring to the shortened characteristic of the genus Dufourea)
Observation frequency
188 iNaturalist observations suggest this is among the more commonly encountered Dufourea , though this may reflect observer effort or range overlap with populated areas rather than true abundance