Factors Causing Seasonal Forms in Ascia monuste (Lepidoptera)

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Science  21 Sep 1962:
Vol. 137, Issue 3534, pp. 987-988
DOI: 10.1126/science.137.3534.987


Light effects will produce the seasonal forms of Ascia monuste L. but they are not yet proved to be the only causative agent. The long-day form is melanic; the short-day form is white. Only females exhibit the effect. The capacity to form melanic females is most frequent in the Florida population and is probably genetically determined.