This mosquito breeds in woodland depressions that fill with water, especially those areas dominated by willow trees and berry vines. Eggs are laid on the mud and organic material along the edges of the receding water in these areas. Adults are generally present in the early spring and are very aggressive.

This species breeds in tree holes, which are water filled rot cavities or depressions found in many species of trees, especially oaks, bay laurel, eucalyptus, sycamore and elm. Any container near trees, that is partially filled with water and leafy debris, may also produce this pest. The eggs hatch when the tree hole or container fills with water. The adults emerge in March and remain in the area…

The Winter Marsh Mosquito (Culiseta inornata) is one of 53 types of mosquitoes that occur in California. One of California’s largest mosquitoes, it reaches a size of 10 mm or almost 1/2″. Adults are a light brown or reddish-brown in color with no unusual or distinctive markings. Populations of this mosquito have been found in most California counties. Total developmental time from egg to adult…

The Winter Salt Marsh Mosquito (Aedes squamiger) is one of 53 types of mosquitoes that occur in California and is a distinctive black and white mosquito that breeds in California coastal pickle weed tidal and diked marshes. Salt marsh pools that are diluted by winter and early spring rains are especially favored breeding sites. Other sites include the cracked ground of diked wetlands and old…

The Woodland Malaria Mosquito (Anopheles punctipennis) is one of 53 types of mosquitoes that occur in California. This is the most common Anopheles mosquito in the Sierra Nevada foothills and coastal ranges of California. Preferred habitat is wooded areas along seasonal creeks and year-round rivers and streams.