Heteronotus tree hoppers have a fake "ant" on their backs, presumably to foil predators.

Maquipucuna Cloud Forest Reserve, Pichincha, Ecuador
Planthoppers in the family Dictyopharidae often have characteristic snouts.

Icononzo, Tolima, Colombia
Formica montana tending Publilia treehopper nymphs for honeydew.

Lake Forest, Illinois, USA
The adult form of this treehopper (bottom left) mimics the abdomen of the Cephalotes atratus ants that tend it for honeydew.

Morretes, Paraná, Brazil
The adult form of this treehopper (bottom left) mimics the abdomen of the Cephalotes atratus ants that tend it for honeydew.

Morretes, Paraná, Brazil
A scale insect tended by Crematogaster ants.

Carrancas, Minas Gerais, Brazil
The adult form of this treehopper (bottom left) mimics the abdomen of the Cephalotes atratus ants that tend it for honeydew.

Morretes, Paraná, Brazil
A worker ant (Technomyrmex difficilis) tending aphids.

Orlando, Florida, USA
A worker ant (Technomyrmex difficilis) tending aphids.

Orlando, Florida, USA
A worker ant (Technomyrmex difficilis) tending aphids.

Orlando, Florida, USA
A worker ant (Technomyrmex difficilis) tending aphids.

Orlando, Florida, USA
A worker ant (Technomyrmex difficilis) tending aphids.

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