Insect vectors of human diseases burden health systems and cause millions of deaths yearly, particularly in developing countries in South and Central America, and Asia.1–3 Millions of dollars are spent each year on research and production of repellent compounds to prevent insect bites that lead to disease transmission. 4 The insect vectors responsible for the spread of human diseases include Diptera (mosquitoes and biting flies), Hemiptera (true bugs), Anoplura (lice), and Siphonaptera (fleas). 5–7 The sense organs of these insects are specifically tuned to detect chemical and physical signals emitted by potential hosts in order to locate a blood meal.