Beekeepers will often mark queens to render them more visible. The color is standardized to correspond to a particular year; blue paint indicates this queen was marked in 2010.
Portrait of a mature laying queen.
Portrait of a mature queen honey bee, Apis mellifera.

Urbana, Illinois, USA
A queen bee, Apis mellifera.

Urbana, Illinois, USA
A queen honey bee solicits food from one of her daughter worker bees (Apis mellifera).

Urbana, Illinois, USA
A queen bee, Apis mellifera.

Urbana, Illinois, USA
A queen bee, Apis mellifera.

Urbana, Illinois, USA
A queen bee, Apis mellifera.

Urbana, Illinois, USA
See photo in original gallery.
all images and text © Alex Wild 2001-2013