Bombus appositus, commonly known as the Adjoining Bumblebee, is a species of bumblebee found in North America. It is characterized by its large size, with queens reaching up to 2 centimeters in length. The Adjoining Bumblebee is known for its distinctive black and yellow coloration, with a black abdomen and yellow bands. It is an important pollinator, particularly for wildflowers and crops such as tomatoes and blueberries.