Abstract
ABSTRACT A bilateral gynandromorph of Spodoptera frugiperda was reported for the first time from Minas Gerais State, Brazil. The specimen with this trait was found among the progeny of a laboratory rearing population and exhibited dimorphism in the antennae, wings, head, thorax, and abdomen. It had a male left side and a female right side. Both the external and internal genitalia were typically those of a male.
Highlights
A bilateral gynandromorph of Spodoptera frugiperda was reported for the first time from Minas Gerais State, Brazil
According to the distribution of male and female features throughout the body, gynandromorphs are classified into anteroposterior, bilateral, transversal, or mosaic distribution (Michez et al, 2009)
The bilateral gynandromorphism is more frequent among insects, other forms with any distribution of sexual characters are known (Dutto et al, 1767; Dang and Peterson, 1979; Davis, 1994; D’Entreves and Roggero, 2013; Renjith and Chandran, 2020)
Summary
A bilateral gynandromorph of Spodoptera frugiperda was reported for the first time from Minas Gerais State, Brazil. According to the distribution of male and female features throughout the body, gynandromorphs are classified into anteroposterior (anterior and posterior sides are of different sexes), bilateral (right and left sides are of different sexes), transversal (asymmetric distribution), or mosaic distribution (random distribution of characters along the body) (Michez et al, 2009). A gynandromorph FAW adult was found and reported for the first time in Minas Gerais State, Brazil, among the progeny of a transgenic Bt corn susceptible laboratory rearing population (Bahia-Cv) (SantosAmaya et al, 2016).
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