
Appearance
The thorax of the common carder bee is either yellowish or reddish-brown in color. The hair of the first four abdominal segments are gray in color, while the hair of the fifth and sixth terga are yellowish or reddish-brown in color.The body length of queens ranges from 15 to 18 mm in length. The body length of female workers ranges from 9 to 15 mm in length. The body length of males range from 12 to 14 mm in length. Queens measure 28 to 32 mm from wing to wing. Workers measure 24 to 27 mm from wing to wing. Drones measure 24 to 27 mm from wing to wing.
The head of the common carder bee is of medium length and the snout is long compared to other species of bumblebee. The snout of the queen ranges between 13 and 15 mm in length. The snout of workers range from 12 to 13 mm in length. The snout of drones range from 10 to 11 mm in length.
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