What are Mosquitoes?

March 7, 2023

What are Mosquitoes?

Mosquitoes are small, flying insects that are found all over the world. They are known for their itchy bites and their ability to transmit diseases. In this article, we will explore the biology of mosquitoes, the diseases they can transmit, and ways to protect yourself from these pesky insects.

Biology of Mosquitoes

Mosquitoes belong to the family Culicidae, which includes over 3,000 species. Only a few species of mosquitoes are responsible for transmitting diseases, but all mosquitoes are capable of biting humans and animals to feed on blood.

Mosquitoes have four life stages: egg, larva, pupa, and adult. Female mosquitoes lay their eggs in standing water, such as ponds, puddles, and even small containers like flower pots or bird baths. The eggs hatch into larvae, which feed on small organisms in the water. After a few molts, the larvae enter the pupal stage, during which they transform into adults. The adults emerge from the water and mate, with female mosquitoes requiring a blood meal to produce eggs.

Mosquitoes have a unique mouthpart called a proboscis, which they use to pierce the skin and feed on blood. They inject saliva into the skin, which can cause itching and swelling. Some people are more attractive to mosquitoes than others due to factors such as body odor, sweat, and carbon dioxide production.

Diseases Transmitted by Mosquitoes

Mosquitoes are known for transmitting a variety of diseases, including malaria, dengue fever, Zika virus, and West Nile virus. The diseases transmitted by mosquitoes can be serious and even deadly, particularly in areas where mosquito populations are high.

Malaria is a life-threatening disease caused by a parasite that is transmitted by female Anopheles mosquitoes. The disease is most common in sub-Saharan Africa but also occurs in parts of Asia and South America. Symptoms of malaria include fever, headache, chills, and flu-like symptoms.

Dengue fever is a viral disease that is transmitted by Aedes mosquitoes. The disease is common in tropical and subtropical areas and can cause symptoms such as high fever, severe headache, joint pain, and rash. In severe cases, dengue fever can lead to dengue hemorrhagic fever, which can be fatal.

Zika virus is a viral disease that is transmitted by Aedes mosquitoes. The disease is most commonly spread through mosquito bites but can also be transmitted through sexual contact or from mother to child during pregnancy. Zika virus can cause symptoms such as fever, rash, joint pain, and conjunctivitis. In pregnant women, Zika virus can cause birth defects, including microcephaly.

West Nile virus is a viral disease that is transmitted by Culex mosquitoes. The disease is most common in North America and can cause symptoms such as fever, headache, and body aches. In severe cases, West Nile virus can lead to meningitis or encephalitis.

Protecting Yourself from Mosquitoes

There are several ways to protect yourself from mosquito bites and the diseases they can transmit. Here are some tips:

  1. Use mosquito repellent: Using a mosquito repellent is one of the most effective ways to repel mosquitoes. DEET, Picaridin, IR3535, Oil of Lemon Eucalyptus, and Permethrin are some of the most effective mosquito repellents available. Always follow the instructions on the label when applying mosquito repellent.

  2. Wear protective clothing: Wearing long-sleeved shirts, pants, and socks can help protect your skin from mosquito bites. Mosquitoes are attracted to dark colors, so wearing light-colored clothing can also help.

  3. Avoid peak mosquito hours: Mosquitoes are most active during dawn and dusk, so it's best to avoid being outside during these times if possible.

  1. Remove standing water: Mosquitoes lay their eggs in standing water, so eliminating standing water around your home can help reduce the number of mosquitoes in the area.

  2. Use mosquito nets: If you're sleeping in an area with a high mosquito population, using a mosquito net can help protect you while you sleep.

  3. Use fans: Mosquitoes are not strong fliers, so using a fan can help keep them away from you.

  4. Use natural repellents: Some natural substances, such as citronella oil, eucalyptus oil, and lavender, are known to repel mosquitoes. While these may not be as effective as chemical repellents, they can be a good alternative for those who prefer natural options.

In addition to protecting yourself from mosquito bites, it's also important to control mosquito populations. This can be done by eliminating standing water around your home, using larvicides to kill mosquito larvae, and using insecticides to kill adult mosquitoes.


Mosquitoes are a common pest that can transmit a variety of diseases. Protecting yourself from mosquito bites is important to prevent these diseases from spreading. Using mosquito repellent, wearing protective clothing, avoiding peak mosquito hours, removing standing water, using mosquito nets, using fans, and using natural repellents are all effective ways to repel mosquitoes. Additionally, controlling mosquito populations can help reduce the number of mosquitoes in your area.