Yellow Swarming Fly

Thaumatomyia notata

Appearance

• Small approximately 1/8" in length (similar to a fruit fly)
• Adults are bright yellow with black longitudinal stripes on thorax and black transverse stripes on abdomen

Lifecycle

• Often found hibernating in attics with cluster flies.
• Little is known about these flies, however theie larvae feed upon aphids associated with grass roots

Habits

•  Often found in large numbers in roof voids in Autumn where they over–winter.