Authors:

Krisha Shah

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About Paper:

Sexual dimorphism is widespread throughout the animal kingdom, and mosquitoes provide an important avenue for exploring the biological basis of this phenomenon. These insects display sexually dimorphic traits that play a key role in disease dynamics, making them an ideal subject for studying morphological differences between the sexes. In mosquitoes, understanding sexually dimorphic traits during developmental stages such as the pupae is particularly relevant as it can provide new targets for efficient vector control strategies. However, our current knowledge of sexually dimorphism in non-human biting mosquitoes is limited, as most research has concentrated on anthropophilic mosquitoes. To address this knowledge gap, we investigated Uranotaenia lowii, a small mosquito species that is specialized on feeding on frogs. By using morphometric analyses, focusing on cephalothorax length at the pupal stage as a key indicator of size for differentiating between the sexes, we examined pupae sorting to evaluate sex identification success upon reaching adulthood. Given that female and male adult Ur. lowii exhibit differences in abdomen shape, this trait was also examined to identify the sex of individuals as pupae. In addition to broadening our understanding of the ontogeny of sexual differences, being able to separate individuals by sex will contribute to future investigations involving focusing on female behavior as they determine disease prevalence.

Source:

Purdue University / 2023

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Co-authors:

Krisha Shah