Sanderson Bumble Bee

Bombus sandersoni is a species of bumblebee known commonly as the Sanderson bumblebee. It is native to North America, where it occurs across Canada and in the eastern United States. The queen is 15 to 16 millimeters long and 6 millimeters wide at the abdomen.

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Bombus bifarius es una especie de abejorro eusocial del subgénero Pyrobombus. ​ B. bifarius habita en regiones montañosas del oeste de Norteamérica.