The larvae feed on Lycopodiella cernua. They bore the stem of their host plant. It enters the stem when quite small and bores downward in the middle of the stem. Having become full grown, it eats a round hole nearly through to the exterior, then pupates just below, where it can readily emerge through the hole at the final transformation. The full-grown larva is about 15 mm and pale shiny green.
The pupa is about 7.5 mm and pale yellowish.