Cryptotermes brevis

Cryptotermes brevis is a type of termite in the family Kalotermitidae. It is commonly called the West Indian drywood termite or the powderpost termite. This special kind of termite can live entirely inside wood, such as in buildings or furniture, without needing any water from outside. Because of this, it can cause serious damage to wooden parts of homes and objects. This termite is often moved to new places by accident, leading to problems for people living there.

Description

West Indian drywood termites are social insects that live inside wood. They build nests inside timbers, making spaces to raise their young and create short tunnels. These termites are larger and have shorter legs than termites that live underground, and they move more slowly. Most of the colony, except the queen and king, cannot see.

The colony has different roles: the queen and king, soldiers, and pseudergates, which act like workers. The queen and king have dark, hard outer coverings, while others have softer bodies. Soldiers are small, about 4 to 5 mm long, and can block tunnels with their heads to keep ants out. Pseudergates help take care of the young, make tunnels, eat wood, and feed others in the colony. Identifying these termites is tricky and is usually done by looking at the shape of the soldiers' heads.

Distribution

Cryptotermes brevis is often brought to new places more than any other termite in the world. It was first found in Jamaica in 1853 by a scientist but likely did not start there. As a drywood termite, it can get all the water it needs from the wood it lives in, so it can be carried to new places without anyone noticing. It might have started in the Neotropics and then moved to places like Jamaica on wooden ships or furniture. From there, it spread to other islands and reached parts of the southeastern United States before 1919. Today, this termite is found all over the world, including the Caribbean, the United States, Central America, South America, Africa, and even Australia, where it was first seen in 1966. It has also been found in places like New Zealand, France’s islands in the Pacific, and parts of Europe.

Life cycle

The Cryptotermes brevis queen lays special-shaped eggs, and these eggs and the growing babies are looked after by worker termites called pseudergates. After several changes in their bodies, these workers help around the colony. Some of these workers grow wing pads and become nymphs, which later change and become alates, winged termites that can have babies. Others become soldiers to protect the group.

In places like Florida, these winged termites fly out at night between April and June to find a new home. After landing, they drop their wings and look for a wooden place to live. They make a small hole to enter, close it up, and start a new family. The first soldiers appear after a couple of years, and the colony can grow to over a thousand termites and last for more than ten years.

Damage

Cryptotermes brevis can live inside wooden buildings and objects like furniture. These termites make tunnels inside the wood but leave a thin layer on the surface. As they eat, the wood may bulge or blister. Small holes called "kick-out holes" may appear, and tiny dusty piles can form below them.

This type of termite is very harmful to homes and can cause a lot of damage. In the United States alone, it causes over $100 million in damage each year, and even more around the world.