The adult female has a yellowish head with two strong circular spots under the antennae close to the compound eyes, whilst the eyes are bluish-green. The chest can show various specks instead of the typical bands and lines. The mesonotum is bluish-gray with three blackish longitudinal lines. The humeral callus and areas mesopleurali, metapleurali, and mesoscutello are ivory. The wings are hyaline, with part of the pterostigma with brown specks at the apex. The abdomen is light brown with variable colourings: typically there are pairs of blackish spots on the first to fourth urotergit, which often come together in bands. The ovipositor is clearly visible, partly invaginated in the seventh urite, which is always black. The length is 4–5 mm.