In entomology, it is a structure in male insects that is used to hold the female during copulation.
He compared the disembodied pumping action to the ability of some male insects to continue mating even after females have bitten their heads off.
Thus, from the perspective of the bacteria, male insects are deadends.
Usually the female pheromone is synthesized to attract the male insects, which are then trapped inside the lures and die.
Chemoreception of sexual odorants by male insects has been considered to be very effective and sharp (Regnier & Law, 1968).
His conclusions were drawn from studying male insects with great horns, mandibles, etc.
The wings of the male insect are bluish purple if the observer sees it from the right angle.