Geshna is a monotypic moth genus of the family Crambidae described by Harrison Gray Dyar Jr. in 1906. It contains only one species, Geshna cannalis, the lesser canna leafroller, described by Altus Lacy Quaintance in 1898. It is found in North America, where it has been recorded from Florida, Mississippi, South Carolina, North Carolina and Tennessee. It has also been recorded from Costa RicaBOLD Systems and Cuba.
The wingspan is 20–25 mm. Adults are on wing from February to May, from July to August and from November to December.McAuslane, Heather J. (May 2017). "Lesser canna leafroller". Featured Creatures. University of Florida. Retrieved April 10, 2018.
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