About Ancistrocerus campestris (de Saussure, 1853)
Ancistrocerus campestris is a species of potter wasp. Adult individuals of this species can reach a maximum length of 10 millimeters (0.394 inches). This wasp can be quickly recognized by the color pattern on the back of its thorax, which resembles a smiley face. It preys on caterpillars belonging to the moth families Amphisbatidae and Gelechiidae.