Dielis are medium sized wasps that exhibit strong sexual dimorphism. The females are black with broad yellow or orange bands on the abdomen, often on the first 3 or 4 tergites. The males have yellow bands on the first 4 or 5 tergites. The setae are usually white, though in some species there is a yellowish to brownish tint. The forewing of
Dielis species includes two recurrent wing veins and two submarginal cells as typical of the genera of Campsomerini, apart from
Colpa. == Distribution ==