Turf-pests
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Anomala
Pale and Green Leaf Chafers, Shining Leaf Chafers
Anomala is a large genus of scarab beetles containing at least 1,200 described species, commonly known as shining leaf chafers or pale and green leaf chafers. Members are recognized by their metallic or iridescent coloration and compact, oval body shape. The genus includes significant agricultural pests, most notably the Oriental beetle (Anomala orientalis), which was introduced to North America before 1920 and has become established from Maine to the Carolinas and westward. Larvae of many species are root-feeding white grubs that damage turfgrass and ornamental plants.
Hoplia
monkey beetles
Hoplia is a genus of scarab beetles commonly known as monkey beetles, comprising at least 300 described species distributed across Asia, Europe, South Africa, Madagascar, and the Americas. The genus is notable for its diverse and often striking coloration strategies, including structural colors produced by nanostructured scales on the elytra. Several species exhibit remarkable optical properties, such as rapid reversible color change upon water exposure in H. argentea, or diffusive angle-independent structural coloration that may enhance camouflage. Adults of many species are associated with flowers, where they feed on pollen and nectar, while larvae typically develop in soil or plant roots. Some species have become significant agricultural or turf pests, including H. philanthus in Europe and H. spectabilis in western China.