Bug FAQTrout-lily Mining Bee
Andrena erythronii · Order: Hymenoptera · Family: Andrenidae
Also called: Trout-lily Andrena, Trout Lily Miner
Female trout-lily miner bees are 11 to 14 mm long, while males are 9 to 11 mm. They are called trout-lily bees because they are closely linked to trout lily flowers (Erythronium). In spring they visit a variety of early-blooming plants, including spring beauty, hepatica, harbinger-of-spring, serviceberry, plum, cherry, and willow.
Source: Wikipedia
Size
Females measure 11 to 14 mm; males are slightly smaller at 9 to 11 mm.
Source: Wikipedia
Where it lives
The bee is named for its association with trout lilies (Erythronium).
Source: Wikipedia
What it eats
Adults gather pollen from spring ephemerals such as spring beauty, hepatica, and harbinger-of-spring. They also visit early-blooming shrubs and trees like serviceberry, plum, cherry, and willow.
Source: Wikipedia
Where it comes from
Andrena erythronii is native to eastern North America.
Source: Wikipedia
Where it is found in the US
Recorded in 23 of 51 states and DC. Most records: Illinois, Vermont, New York, Kansas, New Jersey, Minnesota, Michigan, New Hampshire.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What flowers does the trout-lily mining bee visit?
It visits trout lilies and other spring flowers such as spring beauty, hepatica, harbinger-of-spring, as well as serviceberry, plum, cherry, and willow.
Source: Wikipedia
Same family (Andrenidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Andrena_erythronii
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.