part_of adult coxal tubule adult coxal accessory gland A small aciniform gland attached to the terminal end of the coxal tubule, near its junction with the coxal pore. Its function is unknown. It may serve as the source of the argasid sex pheromone. Fig. 10-10, in Biology of Ticks ISBN:0-19-505910-7. TADS:0000574 TADS:0000574 default_namespace