Pselliopus is a genus of insects belonging to the family Reduviidae, commonly known as assassin bugs. These insects are characterized by their elongated bodies, long legs, and powerful beak-like mouthparts used for piercing and sucking fluids from their prey. Pselliopus species are typically found in North and Central America, where they inhabit various habitats such as forests, grasslands, and agricultural fields. They are known for their predatory behavior, feeding on a wide range of insects and other small invertebrates.