Author:
Shephalika Dash Soumya,Narayan Satapathy Satya
Abstract
Gynandromorphism is a rare phenomenon where an individual develops with a mosaic of both male and female traits. It is observed in various groups of organisms, including arthropods, birds, reptiles, amphibians, and mammals. Among arthropods, gynandromorphs have been frequently documented in both natural populations and laboratory settings. In insects, bilateral gynandromorphs are the most commonly observed, where the left and right halves of the body display different sexes. This phenomenon has been reported in 12 orders within the class Insecta. Within the order Lepidoptera (butterflies and moths), gynandromorphism has been documented in 18 families, with a higher number of cases observed in the families Papilionidae, Pieridae, and Saturniidae. Lepidopterans are known for their sexual dichromatism, primarily expressed through wing coloration. While gynandromorph specimens have been reported in various butterfly families such as Lycaenidae, Nymphalidae, Pieridae, Papilionidae, and Geometridae, there have also been documented cases in certain moth species, including Noctuidae species like Agrotis segetum and Agrotis ipsilon.
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