Marasmia trapezalis

22.Marasmia trapezalis (Guenee). Salbia trapezalis Guenee, Spec. Gen., Lep. 8: 200, 1854. Marasmia trapezaUs, Hampson, Fauna Brit. India, Moths 4: 277, 1896; Tams, Ins. Samoa 3 (4): 276, 1935. Dededo, May 11; Mt. Alifan, May 26; Barrigada, June 24; Piti, July 31, all reared from corn by Swezey. Four specimens in U. S. National Museum, Fullaway, 1911. This corn leafroller is distributed around the world in the tropics. It occurs in many Pacific islands, but not in Hawaii. It was recorded in Guam by Fullaway in 1911. We found young corn plants commonly attacked by the larvae of this moth everywhere in Guam. They roll the tip of the leaf for a hiding place or protection while feeding within. If growing conditions, are favorable the plant is not much checked, especially as the plant becomes older. Some are parasitized by a braconid, Apanteles guamensis Fullaway.Published as part of Swezey, O. H., 1946, Lepidoptera, Geometridae, Arctiidae, Agrotidae, and Pyralidae of Guam, pp. 163-185 in Insects of Guam II, Honolulu, Hawaii :Bernice P. Bishop Museum Bulletin 189 on page 179, DOI: 10.5281/zenodo.516531