What is the approximate size range of Formosan subterranean termite swarmers?

The correct choice reflects the known size range of Formosan subterranean termite swarmers, which typically measure between 13 mm and 15 mm in length. This size is significant when identifying these particular termites, as their dimensions can help differentiate them from other termite species that might be present.

Understanding the size of these swarmers is essential for pest control and management strategies, as recognizing the species can impact the methods used to mitigate infestations. The other options either underestimate or overestimate the typical size of Formosan subterranean termite swarmers, making them less relevant in the context of effective identification and management of this pest.