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Vestal cuckoo bumblebee
The vestal cuckoo bumblebee (''Bombus vestalis'') is a species of cuckoo bumblebee that lives in most of Europe, as well as North Africa and western Asia. It is a brood parasite that takes over the nests of other bee species. Its usual host is ''Bombus terrestris'' (the buff-tailed bumblebee).
== Description ==
The queen is a large bumblebee with a length up to and a wingspan of ; the male is considerably smaller (). The bumblebee is predomninantly black, with an orange collar. The third tergite has a border of yellow hairs, and the hairs on the fifth tergite are mostly white. The males are similar to the females, but smaller and with longer antennae.〔(【引用サイトリンク】title=Cuckoo bumblebees )〕
It is similar in appearance to another cuckoo bumblebee, ''Bombus bohemicus'', but is distinguishable by either the length of the antennal segments or dissection and comparison of the genitalia. In ''B. vestalis'', the fifth antennal segment will be the same length as the third and fourth together.〔(Vestal Cuckoo Bumblebee - ''Bombus vestalis'' ) NatureSpot〕
A key characteristic of ''B. vestalis'' is the lack of corbiculae or a pollen basket on the hind legs of the bee. This is evolutionarily relevant because ''B. vestalis'' does not make its own nests or collect its own resources. With its larger body and worser foraging skills, the female ''B. vestalis'' are adapted to taking over nests which have already been made and using the workers in these colonies to collect pollen.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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