Mosquitoe

The females of most species have piercing and sucking mouth parts and they must feed at least once upon mammalian blood before their eggs can develop properly. During the blood meals the females may either acquire or transmit various disease organisms. It is she who produces the characteristic whining sound by vibrating thin horny membranes on the thorax. The eggs are laid singly or glued together to form rafts, usually in stagnant water in ponds, pools, open containers, and other aquatic habitats. Mosquitoes have become adapted to extremes of climate and are found far north of the Arctic Circle, where they winter as larvae frozen in the ice. Mosquitoes are the vectors of several diseases and health experts are warning travellers to take precautions against being bitten by mosquitoes amid a worldwide increase in dengue fever.

How to Prevent Entry

The best way to reduce mosquito-borne diseases is through mosquito control and personal protection.

Personal Protection:

wear clothing that covers most of your body
spray your clothing with a Permethrin based product like PreVent (Never apply permethrin to your skin, it is a neurotoxin!)

Habitat Modification:

mosquitoes need water to breed and will use any source of standing water
if you have a garden pond, stock it with fish as they will eat the mosquito larvae
ensure that there is no water left standing in buckets etc.
cover drains and water butts

To prevent mosquitoes from entering your home, make sure that all of your window screens are intact.