Great Basin Bumble Bee

Great Basin Bumble Bee

Bombus centralis

Daily sighting probability ~10% · With luck
at Rocky Mountain National Park

In 3 days ~20% in a week ~40%

15 Verified sightings at Rocky Mountain National Park From 2019 to 2026
22 In all 2 parks
July Best month
☀️ Diurnal When it's spotted

About the Great Basin Bumble Bee

Bombus centralis, the central bumblebee, is a species of bumble bee found in parts of Canada and the western United States. The species was first described by Ezra Townsend Cresson in 1864. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Rocky Mountain National Park 🇺🇸 United States
~10%
2 Banff National Park 🇨🇦 Canada
~10%

Cities Where Found

# City Country Daily sighting probability
1 Edmonton 🇨🇦 Canada
~10%
2 Calgary 🇨🇦 Canada
~10%
3 Salt Lake City 🇺🇸 United States
~10%
4 Denver 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Great Basin Bumble Bee in Rocky Mountain National Park?

With luck

About 10% of wildlife watchers report a Great Basin Bumble Bee sighting in Rocky Mountain National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 81st most-seen of the 191 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.

When is the best time to see a Great Basin Bumble Bee in Rocky Mountain National Park?

June to September

In those months about 10% of wildlife watchers report a Great Basin Bumble Bee in Rocky Mountain National Park on a given day, against under 5% in October to May, the lowest months.

What time of day is best to see a Great Basin Bumble Bee?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Great Basin Bumble Bee sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Rocky Mountain National Park the best place to see a Great Basin Bumble Bee?

Yes

Of the 2 parks where we can rate Great Basin Bumble Bee sightings, Rocky Mountain National Park has the highest daily chance: about 10%. Next come Banff National Park (Canada, about 10%).

Which relatives of the Great Basin Bumble Bee live in Rocky Mountain National Park?

Same genus: Bombus

The closest relatives of the Great Basin Bumble Bee that you can see in Rocky Mountain National Park (genus Bombus, Bumble Bees) are Hunt's Bumble Bee (about 10%), Nevada Bumble Bee (about 10%) and Colorado Black-Notched Bumble Bee (about 10%), with each one's daily chance of a sighting.

Where does the Great Basin Bumble Bee sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Great Basin Bumble Bee is recorded against all the insects logged in Rocky Mountain National Park (15 verified sightings from 2019 to 2026), 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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