Pugnacious Leafcutter Bee
Daily sighting probability <5% · Rare
at Toronto

In 3 days ~10% in a week ~20%

16 Verified sightings at Toronto
July Best month

About the Pugnacious Leafcutter Bee

Megachile pugnata is a species of North American bee in the family Megachilidae. It was described by Thomas Say in 1837. M. pugnata is a larger species of Megachile, with the typical female’s body length ranging from 12-18 mm and the male’s 11-13 mm. The outer carapace of both the male and female is completely black in color. Females’ eyes are black as well, while the males have lighter colored grey/green eyes. The ventral aspect of females’ abdomens are characterized by rows of densely packed hairs, which facilitate the collection of pollen. Males have much less densely packed rings of hairs between each segment of the abdomen. Both males and females have large mandibles, an important attribute for the females who use them to slice through leaves to create their nests. The females have a pointed end to their abdomen while the male's abdomen has a clublike, rounded terminus. The female's limbs are all covered in hairs while the male's fore-limbs are heavily modified with a dense brush of bright yellow hair.

M. pugnata build their nests in small hollow cavities found in nature or man made. The cavities they prefer to use are long, slender, and tube... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Edmonton 🇨🇦 Canada
<5%
2 New York City 🇺🇸 United States
<5%
3 Washington 🇺🇸 United States
<5%
4 Boston 🇺🇸 United States
<5%
5 Toronto 🇨🇦 Canada
<5%

Before you go

What are the chances of seeing a Pugnacious Leafcutter Bee in Toronto?

Rare

Under 5% of wildlife watchers report a Pugnacious Leafcutter Bee sighting in Toronto on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 902nd most-seen of the 1689 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.

When is the best time to see a Pugnacious Leafcutter Bee in Toronto?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Pugnacious Leafcutter Bee in Toronto on a given day, so our monthly data shows no clear season.

Is Toronto the best place to see a Pugnacious Leafcutter Bee?

Among the best

Of the 5 cities where we can rate Pugnacious Leafcutter Bee sightings, Toronto ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Edmonton (Canada, under 5%), New York City (United States, under 5%) and Washington (United States, under 5%).

Where does the Pugnacious Leafcutter Bee sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Pugnacious Leafcutter Bee is recorded against all the insects logged in Toronto (16 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.

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