Which ant is characterized by having a light to dark brown color and segmented antennae?

The Argentine ant is indeed characterized by its light to dark brown coloration and segmented antennae. This species typically has a worker caste that exhibits a uniform color, which can range from light to dark brown and allows it to blend into various environments. The segmentation of the antennae is a notable feature, as it consists of 12 segments, providing a distinguishing characteristic that can help in identifying the species.

In contrast, the other options presented do not share these specific traits. The Pennsylvania woods roach and German roach are both types of cockroaches, which have different coloration and body shapes compared to ants. The brown-banded roach also belongs to the roach family and lacks the segmented antennae that are indicative of ants. By focusing on the specific physical attributes of the Argentine ant, one can clearly see why this option is correct in the context of the question.