What is a "melolonthid beetle"?

A melolonthid beetle is a type of beetle belonging to the family Melolonthidae. These beetles are characterized by their oval-shaped bodies, robust build, and usually brown or black coloration. They are known for their nocturnal habits and often become active during the spring and summer months. Melolonthid beetles are herbivorous, feeding on the leaves and flowers of various plants. They play a role in the ecosystem by aiding in the decomposition of organic matter and serving as a food source for other animals.