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Bombus lucorum is part of the order Hymenoptera which consists of ants, bees, wasps, and sawflies, and the family Apidae which comprises bees. It is also part of the genus Bombus which consists of bumblebees, and the subgenus Bombus sensu stricto, which contains five species in Europe: B. terrestris, B. sporadicus, B. lucorum, B. magnus, and B. cryptarum. [2]
Bombus appositus is a species of bumblebee known commonly as the white-shouldered bumblebee. [1] [2] It is native to western North America, including western Canada and the western United States. [1] This species lives in open habitat, such as meadows and slopes. It nests underground or on the surface. Males congregate to seek mates.
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.
The list presented here is a checklist of global bumblebee [1] species (Tribe Bombini) based on the Bombus phylogeny presented by Cameron et al (2007) [2] and grouped by subgenus following the revision of Williams et al (2008). [3]
Bombus impatiens, the common eastern bumblebee, is the most commonly encountered bumblebee across much of eastern North America. [3] They can be found in the Eastern temperate forest region of the eastern United States , southern Canada , and the eastern Great Plains . [ 4 ]
B. magnus, B. lucorum, and B. cryptarum are referred to as the "white-tailed bumblebee complex". [6] Another method of species identification is to compare the labial gland secretions of the males. The secretions of B. magnus and the sympatric B. cryptarum both contain ethyl dodecanoate, suggesting they may be closely related. [7]
The queen is between 20 and 22 mm long, males range from 14 to 16 mm, and workers from 11 to 17 mm. Workers have white-ended abdomens, and look just like workers of the white-tailed bumblebee, B. lucorum, a close relative, apart from the yellowish bands of B. terrestris being darker in direct comparison.
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.