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What Is a Tiger Mosquito?

S. Reynolds
S. Reynolds

The Asian tiger mosquito, also known by its species name Aedes albopictus, is a black and white mosquito that originated in Southeast Asia, though today it is found around the world. It is invasive enough to be considered a pest in most areas and well known for spreading a number of diseases. Only the females feed on blood — males generally feed on nectar.

While the Asian tiger mosquito typically is small, only a fraction of an inch (a few millimeters) long, it can grow up to 0.4 inches (about 10 millimeters) long if it has an abundance of feeding sources. Like other mosquito species, the Asian tiger mosquito breeds smaller males than females. Both males and females, however, have a line of silvery scales that runs between their eyes down to their thorax. Their legs are striped with white and black, as are their bodies. Males also have hairy antennas that easily pick up the sounds of females.

Some paramecia may kill Asian tiger mosquito larvae.
Some paramecia may kill Asian tiger mosquito larvae.

Typical female tiger mosquitoes feed on warm-blooded creatures, including humans. They are usually active during the day and commonly hunt in forests. A female uses her proboscis to stab into a host's skin and suck out the blood. One unique feature of the Asian tiger mosquito is its ability to feed so quickly that hosts aren't able to swipe it away. Males do not feed on blood; they tend to prefer nectar and sweet plants as food sources.

Tiger mosquitos often feed so quickly that the person does not notice their presence.
Tiger mosquitos often feed so quickly that the person does not notice their presence.

Once the female has enough blood and is ready to reproduce, she finds some stagnant or running water and lays her eggs next to the water source. The eggs will hatch when the level of water rises after rainfall. At this point, the time between the larval and mature stages takes less than two weeks. In dry conditions, however, the eggs can survive up to a year.

Scratching mosquito bites may cause them to become infected.
Scratching mosquito bites may cause them to become infected.

The forest day mosquito will bite many different mammals, even birds. They bite several hosts during a feeding in order to get enough blood to develop eggs. Since it feeds on so many different species, this mosquito is readily able to transmit viruses from one species to another.

These mosquitoes do have natural enemies, including swimming beetles, protozoans, flatworms, and other mosquito larvae. Paramecia can also kill Asian tiger mosquitos. Additionally, almost all types of spiders in the mosquito's breeding grounds feed on the insects. Copepods, a type of tiny crustacean, will eat tiger mosquitoes as well.

A tiger mosquito needs to bite several hosts in order to gain enough blood to develop eggs.
A tiger mosquito needs to bite several hosts in order to gain enough blood to develop eggs.

Control of mosquitoes is an ongoing process. Since they carry such deadly diseases, people must protect themselves from getting bit in the first place. Mosquito repellents can prevent the majority of bites. It is also important to give dogs and cats preventative treatments, as mosquitoes can transmit the parasites that cause heartworm disease.

Frequently Asked Questions

What is a tiger mosquito and how can it be identified?

The tiger mosquito, scientifically known as Aedes albopictus, is a small, black mosquito with distinctive white stripes on its body and legs, resembling a tiger's pattern. It is notorious for being an aggressive daytime biter and is a vector for various diseases, including Zika, dengue, and chikungunya. Its unique striping makes it easily distinguishable from other mosquito species.

Where are tiger mosquitoes commonly found?

Originally from Southeast Asia, tiger mosquitoes have spread to many regions of the world, including the United States, Southern Europe, and parts of Africa and Latin America. They thrive in tropical and subtropical climates but have adapted to cooler regions. They are often found in urban and suburban areas with standing water, which serves as breeding sites.

What diseases can tiger mosquitoes transmit?

Tiger mosquitoes are vectors for several serious diseases. They can transmit dengue fever, West Nile virus, Zika virus, and chikungunya, among others. According to the World Health Organization, dengue infections have increased dramatically worldwide, with about half of the world's population now at risk. Tiger mosquitoes contribute significantly to the spread of these diseases.

How can one prevent tiger mosquito bites?

To prevent tiger mosquito bites, it's essential to eliminate standing water where they breed, use insect repellent containing DEET or Picaridin, wear long-sleeved shirts and pants, and use mosquito nets or screens. Mosquito control programs also help reduce their populations. Personal protection and community efforts are crucial in preventing bites and disease transmission.

Are tiger mosquitoes more aggressive than other mosquito species?

Yes, tiger mosquitoes are considered more aggressive than many other mosquito species. They are persistent daytime biters, which sets them apart from mosquitoes that typically bite at dawn or dusk. Their aggressive nature increases the likelihood of disease transmission, making them a significant public health concern in areas where they are prevalent.

How do tiger mosquitoes affect local ecosystems?

Tiger mosquitoes can have a profound impact on local ecosystems. As invasive species, they can outcompete native mosquito species for resources, potentially disrupting local ecological balances. Their role as disease vectors also affects wildlife and can influence the health of various animal populations, in addition to posing risks to human health.

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    • Some paramecia may kill Asian tiger mosquito larvae.
      By: micro_photo
      Some paramecia may kill Asian tiger mosquito larvae.
    • Tiger mosquitos often feed so quickly that the person does not notice their presence.
      By: CedarchisCociredeF
      Tiger mosquitos often feed so quickly that the person does not notice their presence.
    • Scratching mosquito bites may cause them to become infected.
      By: ronstik
      Scratching mosquito bites may cause them to become infected.
    • A tiger mosquito needs to bite several hosts in order to gain enough blood to develop eggs.
      By: dragi52
      A tiger mosquito needs to bite several hosts in order to gain enough blood to develop eggs.