ガマ
The larvae feed inside the seedheads of "Typha" species, including "Typha angustifolia" and "Typha latifolia". There are indications that young larvae mine in the spongy tissue of the leaf sheaths. The larvae have a whitish or pale tan body with a brown dorsal line. The dorsolateral and ventrolateral lines are composed of light brown irregular patches. The head is brown with darker brown spots and there are brown spots on the terminal abdominal segment.