Scarab-control
Guides
Scolia dubia dubia
Blue-winged Wasp, Two-spotted Scoliid Wasp, Blue-winged Digger Wasp
Scolia dubia dubia is a subspecies of scoliid wasp commonly known as the Blue-winged Wasp. Adults measure 20–25 mm in length and are distinguished by a bi-colored abdomen: black on the upper half and reddish-brown on the lower half, with two bright yellow spots in the red portion. The wings exhibit brilliant blue iridescent highlights visible in direct sunlight. Females are solitary parasitoids of scarab beetle grubs, including Cotinis nitida (Green June Beetle) and Popillia japonica (Japanese Beetle). Males are non-stinging and can be distinguished by longer antennae, more slender bodies, and a three-pronged pseudostinger.