Mosquito Lifecycle
Adults
The adult mosquito comes out of the pupa with wet wings. It starts to fly after it has dried off and its body parts have hardened.
Egg
This is the first stage of the mosquito life cycle. The female mosquito lays her eggs on the surface of still water, or other areas where flooding is common.
Eggs will hatch into larvae within 1-2 days. Once they hatch, the larval stage begins.
Larva
Pupa
This is the development stage for the future mosquito. During this phase the larva goes through metamorphosis.
Adults
Above Water Surface
The adult mosquito comes out of the pupa with wet wings. It starts to fly after it has dried off and its body parts have hardened.
Egg
At Water Surface
This is the first stage of the mosquito life cycle. The female mosquito lays her eggs on the surface of still water, or other areas where flooding is common.
Larva
At Water Surface
Eggs will hatch into larvae within 1-2 days. Once they hatch, the larval stage begins.
Pupa
Below Water Surface
This is the development stage for the future mosquito. During this phase the larva goes through metamorphosis.
Covid-19 frequently asked questions
Can mosquitoes transmit the coronavirus?
At this time, we have no data to suggest that COVID-19 or other similar coronaviruses (e.g. SARS, MERS) are spread by mosquitoes or ticks.
Read MoreCovid-19 frequently asked questions
Mosquito Control & COVID-19
Clark County Mosquito Control District, as an essential service, is still serving the community by treating for mosquitoes and responding to mosquito control service requests. The health and safety of the citizens we serve and of our employees is paramount during the COVID-19 pandemic. To protect everyone, we have implemented the following measures to promote…
Read MoreMosquito Fact
All mosquitoes like water because mosquito larvae and pupae live in water with little or no flow. This is why you find mosquitoes most often near areas such as marshes, ponds, and along river banks.

Mosquito Fact
Mosquitoes mean nothing personal when they take your blood. Female mosquitoes need protein for their eggs and must take a blood meal in order to reproduce. Because males don't bear the burden of producing young, they'll avoid you completely and head for the flowers instead. When not trying to produce eggs, females are happy to stick to nectar, too.

How many species of mosquitoes are in Washington State?
We have 23 different species of mosquitoes in Washington State. The largest increase is in floodwater mosquitoes, or Aedes vexans, a species known for its residence in soil above the waterline of aquatic areas. Washington is home to 23 different species of mosquitoes.

What can homeowners do to reduce mosquito bites?
If possible, schedule your activities to avoid the times when mosquitoes are most active - usually dawn and dusk. You should also dress in light, loose-fitting clothing. If you have a deck, try lighting it using yellow lights instead of incandescent lights and use fans to keep mosquitoes, who are weak fliers, away.

We effectively and efficiently manage risks from vector-borne disease to protect public health and quality of life.
Our office hours are Monday – Friday 7am – 3:30pm. For quickest turnaround please submit a Service Request.