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Science 21 September 1962:
Vol. 137. no. 3534, pp. 987 - 988
DOI: 10.1126/science.137.3534.987
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Articles

Factors Causing Seasonal Forms in Ascia monuste (Lepidoptera)

Roger W. Pease Jr. 1

1 Department of Biology, Yale University, New Haven, Connecticut

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)