The chief mosquito vector, Ae. aegypti, is most commonly found in or next to human habitations and favors to nourish on humans during the daylight. It has two crest stages of biting movement: in the break of day for a number of hours later than daybreak and in the late hours of daylight for several hours previous to dark. Even so, the mosquito may provide for at any time during daytime, in particular indoors, in shaded areas, or when it is gloomy. Mosquito propagation sites contain non-natural water containers such as unnecessary tires, exposed water storeroom barrels, buckets, flower vases or pots, cans, and cisterns.