Megachile angelarum
In 3 days ~10% in a week ~20%
Megachile angelarum is a species of bee in the Megachilidae family. Solitary bees, such as leafcutters, do not form colonies. Unlike social insects (ants, yellow jackets, honeybees), leafcutters work alone building isolated nests. Similar to honeybees, female bees perform nearly all essential tasks of brood rearing. These native insects perform essential tasks, pollinating wild plants. The alfalfa leaf cutter bee (Megachile rotundata), native to Europe, has been semi-domesticated for crop pollination. In North America, the species was deliberately imported to assist in the pollination of food crops, but has now become feral and widespread.
Cockerell, 1902. South. Calif. Acad. Sci. Bull. 1: 70 (♀) The genus Megachile is a cosmopolitan group of solitary bees, often called leafcutter bees. While other genera within the family Megachilidae may chew leaves or petals into fragments to build their nests, certain species within Megachile neatly cut pieces of leaves or petals, hence their common name. The genus Megachile is one of the largest genera of bees, with almost 1500 species.
Nesting Behavior: Megachile... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States | |
| 2 | Seattle | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Megachile angelarum sighting in Portland on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 427th most-seen of the 507 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Megachile angelarum in Portland on a given day, so our monthly data shows no clear season.
Yes
Of the 3 cities where we can rate Megachile angelarum sightings, Portland has the highest daily chance: under 5%. Next come Seattle (United States, under 5%) and San Francisco (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Megachile angelarum is recorded against all the insects logged in Portland (6 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.
