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North American Ecology (US and Canada)Nastra julia is a year-round resident in southern Texas and California/Arizona and ranges south to Costa Rica (Scott 1986). Habitats are moist grassy places, stream banks, and grassy ditches. Host plants are grasses, especially species Cynodon dactylon. There are multiple flights all year in southern Texas, April 1- Oct. 31 elsewhere (Scott 1986).