What is a "darkling beetle"?

A darkling beetle is a common insect found worldwide. It has a dark and elongated body with hardened wings, and it feeds on decaying organic matter. Darkling beetles play an important role in breaking down dead plant material, contributing to the process of decomposition in ecosystems. They are often encountered in agricultural settings and can be both beneficial as decomposers and pests when they infest stored grains or crops.