Formosan Termites

C. formosanus

Originally from China, Formosan termites are the most voracious, aggressive and devious of over 2,000 termite species known to science. Formosan termites are a subterranean species of termite. Swarmer formosan termite are about 1/2 inch in overall length, including their wings.

Formosan Termites
Color Yellowish brown
Legs 6
Shape Long, narrow, oval
Size 1/2"
Antennae True


Formosan termites are the most aggressive subterranean termite species. Formosans are organized into huge underground colonies and build intricate mud nests inside the walls of a structure.


Because of their aggressive nature, formosan termites are difficult to control once they infest a structure. Prevention is key.


Avoid water accumulation near your home's foundation. Divert water away with properly functioning downspouts, gutters and splash blocks. Reduce humidity in crawl spaces with proper ventilation. Never bury wood scraps or waste lumber in the yard. Most importantly, eliminate wood contact with the soil. Maintain a one-inch gap between the soil and wood portions of the building.