Robber fly (Asilidae)

Photomacrograph of the head of a robber fly (Asilidae). Robber flies are also called assassin flies and are found around the world often in dry, sunny habitats. They are opportunistic predators and the adults feed on a variety of other arthropods such as wasps, bees, dragonflies, grasshoppers, other flies, and some spiders. Two prominent compound eyes (for accurate perception of movement) are visi…