Coffee-berry-borer
Guides
Cathartus quadricollis
square-necked warrior beetle
A small predatory flat bark beetle in the family Silvanidae with a broad global distribution spanning the Americas, Africa, and the Galápagos Islands. In Hawaii, it serves as an important natural enemy of agricultural scolytine pests including the coffee berry borer, tropical nut borer, and black twig borer. Laboratory studies confirm it can complete development on various stored grains and seeds. The species shows potential for augmentative biological control programs due to its limited dispersal from release sites and established predation rates on pest eggs.