Andrena erythronii
In 3 days ~10%
Andrena erythronii is a species of miner bee native to eastern North America. It is known as the trout lily miner bee and trout lily bee, for its association with trout lilies, flowers in the genus Erythronium. It has also been observed visiting the flowers of other spring ephemerals such as spring beauty (Claytonia), hepatica (Hepatica), and harbinger-of-spring (Erigenia bulbosa), as well as spring-flowering shrubs and trees: serviceberry (Amelanchier), plum and cherry (Prunus), and willow (Salix).
Female trout lily miner bees reach 11–14 mm in length while males are a little smaller: 9–11 mm. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Trout-Lily Mining Bee sighting in Toronto on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 1135th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Trout-Lily Mining Bee in Toronto on a given day, so our monthly data shows no clear season.
Only Toronto, in our data
Toronto is the only city on Wallace's Line with enough records to rate Trout-Lily Mining Bee sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Trout-Lily Mining Bee is recorded against all the insects logged in Toronto (10 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
