Franklin's Bumble Bee vs Blackberry Leaf Miner

Side-by-side species comparison

Attribute Franklin's Bumble Bee Blackberry Leaf Miner
Scientific Name Bombus franklini Metallus pumilus
Order Hymenoptera Hymenoptera
Family Apidae Tenthredinidae
Size 14-18 mm 3-4 mm
Habitat Mountains Underground
Diet Nectar Feeders Herbivores
Regions Western United States Europe, North America
Conservation Critically Endangered Least Concern

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.

Blackberry Leaf Miner

A tiny, dark metallic sawfly whose larvae create blotch mines in blackberry and raspberry leaves. Mined areas turn brown and papery.

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Did You Know?

Despite their tiny size, heavy infestations can mine nearly every leaf on a blackberry bush, significantly reducing fruit yield.