What is the distinguishing feature of Carpenter Ants?

The distinguishing feature of Carpenter Ants is their size and the unique structure of their antennae. Carpenter Ants typically measure between 1/4 to 1/2 inches long and possess bent or elbowed antennae, which differentiates them from other ant species that may have straight antennae. This physical characteristic, combined with their size, makes it easier to identify Carpenter Ants in the field.

In contrast, other features mentioned, such as being bright red and 1/8 inches long, do not apply to Carpenter Ants but may describe other smaller ant species. While Carpenter Ants do build nests in dead wood, which can be a distinguishing behavior, the specific size and the shape of their antennae serve as more immediate and clear identification markers. Additionally, being hematophagous refers to a feeding behavior characterized by consuming blood, which is not applicable to Carpenter Ants, as they primarily feed on sugars, proteins, and other organic substances.