Scolia dubia, also known as the blue-winged wasp, is a 2.0–2.5-centimeter (0.8–1.0 in) long wasp that ranges from New England to Florida and west to the Rocky Mountains in North America. The head, thorax, and first two abdominal segments are black, while the remainder of the abdomen is red with two bright yellow spots on the third abdominal segment. The distal section of the blue-black wings has longitudinal wrinkles. These wasps collect nectar from flowers in late summer and early fall.