Termites have a rich set of exocrine glands. These glands are located all over the body,
appearing in the head, thorax, legs and abdomen. Here, we describe the oral gland, a new
gland formed by no more than a few tens of Class I secretory cells. The gland is divided into
two secretory regions located just behind the mouth, on the dorsal and ventral side of the
pharynx, respectively. The dominant secretory organelle is a smooth endoplasmic reticulum.
Secretion release is under direct control of axons located within basal invaginations of the …