Diasemia grammalis

Species of moth

Diasemia grammalis, also known as the Arrowhead, is a moth of the family Crambidae. It is likely endemic to New Zealand and has been observed in both the North and South Islands. The species inhabits open dry herb field areas. Adults are day flying and are on the wing most commonly from October until March. Larvae feed on the ground the roots of native grasses and shrubs including Muehlenbeckia axillaris.

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