🐝 Ants, Bees & Wasps

Franklin's Bumble Bee

Bombus franklini

Critically Endangered

About Franklin's Bumble Bee

The world's most range-restricted bumble bee, found only in a small area between southern Oregon and northern California. It has not been reliably seen since 2006 and may be extinct.

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Did You Know?

Its entire known range spans only about 190 miles north to south, making it the most geographically restricted bumble bee on Earth.

How to Identify Franklin's Bumble Bee

Franklin's Bumble Bee (Bombus franklini) belongs to the order Hymenoptera, family Apidae. Adults typically measure 14-18 mm.

Franklin's Bumble Bee Habitat

Franklin's Bumble Bee is found in mountains habitats, particularly across Western United States. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.

Franklin's Bumble Bee Diet and Feeding

Franklin's Bumble Bee feeds primarily on nectar from flowers. In doing so, it acts as an important pollinator, transferring pollen between plants and contributing to plant reproduction and biodiversity.

Where Is Franklin's Bumble Bee Found?

Franklin's Bumble Bee can be found in Western United States, where it inhabits mountains environments. Its distribution is influenced by climate, food availability, and habitat suitability.

Distribution Map

Where Franklin's Bumble Bee can be found

Is Franklin's Bumble Bee Dangerous?

Franklin's Bumble Bee belongs to the order Hymenoptera, which includes many stinging insects. While not typically aggressive, it may sting if threatened or handled. Stings can cause pain and swelling, and in rare cases may trigger allergic reactions in sensitive individuals.

Franklin's Bumble Bee Role in Nature

Franklin's Bumble Bee plays an important role as a pollinator. By visiting flowers to feed on nectar or pollen, it transfers pollen between plants, aiding in reproduction and helping to maintain plant diversity. Pollinators are essential for the production of many fruits, vegetables, and wildflowers.

Seasonal Activity

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Peak activity Moderate Low / dormant

Frequently Asked Questions About Franklin's Bumble Bee

What does Franklin's Bumble Bee look like?

The Franklin's Bumble Bee typically measures 14-18 mm.

Where is Franklin's Bumble Bee found?

The Franklin's Bumble Bee is found in Western United States and typically inhabits mountains environments.

What does Franklin's Bumble Bee eat?

The Franklin's Bumble Bee feeds primarily on nectar from flowers.

Is Franklin's Bumble Bee dangerous to humans?

The Franklin's Bumble Bee belongs to the order Hymenoptera, which includes stinging insects. While not typically aggressive, it may sting if threatened or handled.

Is Franklin's Bumble Bee endangered?

The Franklin's Bumble Bee is currently classified as Critically Endangered by conservation assessments. Habitat loss and environmental changes are among the primary threats to its population.

What is an interesting fact about Franklin's Bumble Bee?

Its entire known range spans only about 190 miles north to south, making it the most geographically restricted bumble bee on Earth.

Cite This Page

APA:
InsectDiscover. (2026). Franklin's Bumble Bee (Bombus franklini). Retrieved from https://insectdiscover.com/insect/franklins-bumble-bee

MLA:
"Franklin's Bumble Bee." InsectDiscover, https://insectdiscover.com/insect/franklins-bumble-bee.