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A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus Bombus, part of Apidae, one of the bee families. This genus is the only extant group in the tribe Bombini , though a few extinct related genera (e.g., Calyptapis ) are known from fossils .
Bombus occidentalis, the western bumble bee, is one of around 30 bumble bee species present in the western United States and western Canada. [1] A recent review of all of its close relatives worldwide appears to have confirmed its status as a separate species.
Bombus sandersoni is a species of bumblebee known commonly as the Sanderson bumblebee. [1] [2] It is native to North America, where it occurs across Canada and in the eastern United States. [1] The queen is 15 to 16 millimeters long and 6 millimeters wide at the abdomen. It is black with pale hairs on the head and yellow on the abdomen.
The larval fly hatches within the bee host and develops by feeding on the host’s tissues. The bee lives for about two weeks before dying. The fly then pupates and spends the winter inside the bee, fully developed, before it emerges the following year. Bombus pensylvanicus is host to one "cuckoo" bumble bee species, B. variabilis. [7]
Bombus ternarius, commonly known as the orange-belted bumblebee or tricolored bumblebee, [2] is a yellow, orange and black bumblebee. It is a ground-nesting social insect whose colony cycle lasts only one season, common throughout the northeastern United States and much of Canada . [ 3 ]
Bombus perplexus is a species of bumblebee known by the common name confusing bumblebee. [1] [2] It is native to northern North America, where it occurs across Canada and into the eastern United States. [1] The queen is 1.7 to 2.1 centimeters long and just under a centimeter wide at the abdomen. It is mostly black with areas of pale hairs.
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Bombus terrestris, the buff-tailed bumblebee or large earth bumblebee, is one of the most numerous bumblebee species in Europe. It is one of the main species used in greenhouse pollination , and so can be found in many countries and areas where it is not native, such as Tasmania . [ 2 ]