Abstract
The endemic noctuid moth Agrotis innominata is recorded from several new southern coastal localities. The larvae are recorded as feeding on the exotic marram grass (Ammophila arenaria) in sand dunes. A description of the larva is given and comments are made on its native hosts. Southern populations (south of Westport and Christchurch) of the species are found to have a brachypterous female in contrast to northern populations. The flight period is found to be trans-winter (i.e. May-December). It is compared with coastal noctuid species in the Northern Hemisphere. The implications for A. innominata of the removal of marram grass and replacement with native species on dune systems is discussed.
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