Maine township maps for confirmed historic (1864 - 1999), confirmed modern (2000+), and both historic and modern records of known bumble bee species. In each case, 'confirmed' indicates species presence based on either specimen or image vouchers. Many Maine townships still have either few or no species' records.
| Common Name | Scientific Name |
| Rusty-patched Bumble Bee | Bombus affinis |
| Ashton's Cuckoo Bumble Bee | Bombus ashtoni |
| Two-spotted Bumble Bee | Bombus bimaculatus |
| Northern Amber Bumble Bee | Bombus borealis |
| Lemon Cuckoo Bumble Bee | Bombus citrinus |
| Fernald's Cuckoo Bumble Bee | Bombus fernaldae |
| Yellow Bumble Bee | Bombus fervidus |
| Brown-belted Bumble Bee | Bombus griseocollis |
| Common Eastern Bumble Bee | Bombus impatiens |
| Indiscriminate Cuckoo Bumble Bee | Bombus insularis |
| American Bumble Bee | Bombus pensylvanicus |
| Confusing Bumble Bee | Bombus perplexus |
| Red-belted Bumble Bee | Bombus rufocinctus |
| Sanderson's Bumble Bee | Bombus sandersoni |
| Tri-colored Bumble Bee | Bombus ternarius |
| Yellow-banded Bumble Bee | Bombus terricola |
| Half-black Bumble Bee | Bombus vagans |
Other Target Bees
| Eastern Carpenter Bee | Xylocopa virginica |
| Giant Resin Bee | Megachile sculpturalis |
| European Wool-carder Bee | Anthidium manicatum |