Trigoniulus corallinus (Gervais), a common introduced species on tropical islands throughout the world. Lesser Antilles, St. Barthelemy. Photo courtesy of K. Questal.

Anterior end of Trigoniulus corallinus (Gervais), a common introduced species on tropical islands throughout the world. Lesser Antilles, St. Barthelemy. Photo courtesy of K. Questal.

Apeuthes sp. Asia, Vietnam, Cat Tien National Park. Photo courtesy of Nguyen Duc Anh.