These mosquitoes 'prefer to bite people.' Meet the invasive insect ravaging the West Coast - USA TODAY

Levy Sun, director of communications for the San Gabriel Valley Mosquito & Vector Control District, said most mosquitoes prefer to feed on birds, but with Aedes mosquitoes, it's a whole difference interest.

Luz Maria Robles, public information officer for the Sacramento-Yolo Mosquito & Vector Control District, said they even found these mosquitoes living in May this year.

West Nile virus is the most known virus mosquitoes can carry, but these critters can carry a lot more, such as Zika, yellow fever, dengue and chikungunya, among others.

Typically, mosquitoes lay their eggs in large bodies of standing water, whereas Aedes eggs "look like a very small speck of dirt," and the insects can lay them in a bottle cap of water and on things such as toys, buckets and plants.

"These mosquitoes come from tropical climates, and by us here in Southern California creating microclimates in our yard, we allow these mosquitoes to thrive," he said

"Compared to the native mosquitoes here, they can actually be more resistant to a lot of the pesticides we put out in our yard," he said

The mosquitoes are black with distinctive white stripes, and if they are spotted, people are urged to call their local mosquito and vector control department