NO. 022
Bees & wasps
Common eastern bumblebee
First abdominal segment is yellow
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NO. 024
Illustration · not shown at life size
Illustration · not shown at life sizeBees & wasps / Insect
Rusty-patched bumblebee
Bombus affinis
This endangered native bee needs careful looking. Workers have a rusty patch surrounded by yellow hair.
Let’s look closerLittle clues
Three things to notice.
Rust patch surrounded by yellow hairs.
Black head.
Endangered native pollinator.
Out in the world
Where to look.
Around southeastern Wisconsin
Regional gardens and natural areas.
When to look
Workers appear in summer. Queens begin their nests in spring.
Look closely. Leave your tiny neighbor where you found it.
A closer look
One clue is just the start.
The rusty patch appears on workers and males. Queens do not have it. A clear photo can help an expert check the identity.
This creature is genuinely imperiled. Encounters depend on season and habitat.
Keep exploring
Meet the neighbors.
For curious grownups, too
Read a little further.
- Rusty Patched Bumble Bee (Bombus affinis) | U.S. Fish & Wildlife ServiceLock
- Finalized Habitat Protections for Endangered Rusty Patched Bumble Bee | U.S. Fish & Wildlife ServiceLock
Original summaries, with references for deeper reading. Field notes are being checked against the supplied research.
Make a bug slide
Artwork & downloads.
Front artwork is made for a 3-inch clear disc. Revised artwork still needs a physical check. Reverse QR files use the confirmed permanent website.
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