Nerves in the antennae of pupalManduca sexta Johanssen (Lepidoptera: Sphingidae).

The antennal rudiment of pupalManduca sexta contains two small nerves in its lumen. Each nerve is made up of about 160 axons that run from neurons near the tip of the pupal antenna to the brain. These neurons are also present in antennae of pharate pupae, diapausing pupae, and developing adults, and are distinct from the primary sensory neurons that are associated with the cuticular sensilla of larval and adult antenna.