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Bombus ruderarius : ウィキペディア英語版 | Bombus ruderarius
''Bombus rudarius'', commonly known as the red-shanked carder bee or red-shanked bumblebee, is a species of bumblebee found in Eurasia.〔(【引用サイトリンク】title=Map of ''Bombus ruderarius'' )〕 == Description == Though sometimes mistaken for ''Bombus lapidarius'', ''Bombus ruderarius'' varies slightly in appearance from ''B. lapidarius'' in several ways. ''Bombus ruderarius'' is a relatively small bumblebee with a wide abdomen, an oblong face, and a fairly long tongue. The queen has an average length of and a wingspan of , while the other castes are somewhat smaller; the workers have an average length of and the males .〔(【引用サイトリンク】title= Less common species of bumblebee found in the UK )〕 Their colour is prominently black, with a red tail; among males, however, a lighter form exists with yellow-green hairs on the thorax and the first two terga (abdominal segments). The corbicula (pollen basket) on the hind legs of females (queens and workers) is covered with yellow-red hair.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Bombus ruderarius」の詳細全文を読む
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