Atomosia is a small insect belonging to the family of Tachinidae. It is characterized by its slender body, measuring around 5-10 millimeters in length, and its distinctive metallic green or blue coloration. Atomosia is known for its rapid flight and is commonly found in grassy areas and meadows. It is a parasitic insect, laying its eggs on other insects, particularly beetles, and its larvae feed on the host, eventually leading to its death.