The inducer belongs to the genus Daphnephila . Vascular tissue, sclerenchyma, and a nutritive layer surround the larval chamber. The head is very small and retracts into the prothorax. The posterior and anterior margins of the oblong sternal spatula are straight. The length is more variable than the width.
Galls always arise near leaf edges, and the tops of galls are often toward leaf edges.
Each gall has a long stalk to Figure 1. Spindle-shaped gall induced by Daphnephila sp. 1 on the twig of Machilus thunbergii . Swan-shaped gall induced by Daphnephila sp. 2 on the leaves of Machilus thunbergii .