Camponotus (Colobopsis) impressus with a pupa. Note the differences in size and shape between major and minor workers.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker. The blunt head serves as a living door to this species' twig nests.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus is a small arboreal ant whose minor workers (right) mimic Crematogaster acrobat ants. The major workers (left) serve as living doors, plugging nest entrances with an enlarged head.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker. The blunt head serves as a living door to this species' twig nests.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker. The blunt head serves as a living door to this species' twig nests.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus with a pupa. Note the differences in size and shape between major and minor workers.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker. The blunt head serves as a living door to this species' twig nests.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker. The blunt head serves as a living door to this species' twig nests.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker. The blunt head serves as a living door to this species' twig nests.

Laboratory colony at the University of Central Florida, USA
Camponotus (Colobopsis) impressus major worker. The blunt head serves as a living door to this species' twig nests.

Laboratory colony at the University of Central Florida, USA
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all images and text © Alex Wild 2001-2013