Eustixia

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Eustixia is a small moth group in the Crambidae family. It is a monotypic genus, with only one species: Eustixia pupula, the spotted peppergrass moth. Both the genus and species were described by Jacob Hübner in 1823. Eustixia pupula is found in North America, from Massachusetts to Florida, west to Texas, and north to Ontario. The wingspan is about 17 millimeters. Adults fly from June to August. The larvae feed on the leaves of peppergrass (Lepidium species), field pennycress (Thlaspi arvense), and cabbage. The species has a synonym: Thelcteria Lederer, 1863.