Adult parasitic wasp, Scutellista caerulea, and emergence holes in black scale, Saissetia oleae.

The parasitic wasp <i>Scutellista caerulea</i> emerging from a black scale and two scales with exit holes. Credit: Kent M. Daane
Adult parasitic wasp, Scutellista caerulea, and emergence holes in black scale, Saissetia oleae. Credit: Kent M. Daane