What stage of decomposition is characterized by the arrival of various insects such as carrion beetles?

The stage of decomposition characterized by the arrival of various insects such as carrion beetles is indeed recognized in the late decay phase. During this period, the breakdown of organic matter is advanced, and the presence of a wide variety of insect species becomes prominent. Carrion beetles, specifically, play an important role in this phase as they feed on decaying flesh and help in the decomposition process by breaking down the tissue further.

Insects are integral to the decomposition stages, and their presence indicates progression through the decomposition timeline. The late decay phase usually involves extensive microbial activity and significant action from scavengers, including larger insects and various other arthropods that assist in breaking down the remains. Hence, the involvement of carrion beetles is indicative of this advanced state of decay and aligns with ecological processes that contribute to nutrient cycling in the environment.