What is the key visual difference between female *B. lapidarius* and female Red-shanked Carder Bees (*B. ruderarius*) regarding the legs?
Answer
Female *B. ruderarius* have pollen baskets fringed with orange hairs
The hind legs of female *B. lapidarius* are bare and black, while the pollen baskets of the *B. ruderarius* queen and worker are distinctly fringed with orange hairs.
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