Which beetle is known for kicking fine frass out of its exit holes?

The True Powder Post Beetle is recognized for its distinctive behavior of kicking fine frass out of the exit holes it creates. This beetle typically infests hardwoods and can be found in the structural wood of homes, resulting in noticeable damage. The frass, which is the wood dust mixed with the beetle's fecal matter, is expelled as the beetles emerge from the wood, creating small piles around the exit holes. This characteristic is a key identifying feature of the True Powder Post Beetle and is often used by pest control operators to diagnose infestations.

Other insects listed, such as the Saw Toothed Grain Beetle and the Deathwatch Beetle, have different habits and behaviors regarding frass. The Saw Toothed Grain Beetle is primarily known for infesting stored grains and does not demonstrate the same frass behavior as the True Powder Post Beetle. Similarly, the Deathwatch Beetle is associated with making a tapping sound and infesting wood but does not engage in kicking out frass in the manner of True Powder Post Beetles.