Sesiinae

Sesiinae is a subfamily of moths belonging to the family Sesiidae, commonly known as clearwing moths. These moths are characterized by their transparent wings, which lack the scales typical of most other moths. This adaptation allows them to mimic wasps, a form of Batesian mimicry that offers protection from predators who avoid wasps due to their sting.

Sesiinae moths are typically day-flying, further enhancing their wasp-like appearance and behavior. They are often brightly colored with yellow, orange, or red markings on a black or dark blue body, further contributing to their resemblance to various wasp species.

The larvae of Sesiinae are typically internal feeders, boring into the stems, roots, or trunks of various plants, including trees, shrubs, and herbaceous plants. This feeding behavior can sometimes make them significant pests in agricultural or forestry settings. Specific host plants vary widely depending on the species of Sesiinae.

Identification of Sesiinae moths can be challenging due to their mimicry and relatively small size. Entomologists often rely on morphological characteristics, including wing venation and the structure of genitalia, for accurate identification. DNA barcoding is also increasingly used to differentiate between closely related species.

The geographical distribution of Sesiinae is widespread, with species found on every continent except Antarctica. Their diversity is greatest in tropical and subtropical regions.