Virginia is home to roughly 50 mosquito species, though only about 30 are commonly encountered by residents in backyards, wetlands, and wooded neighborhoods. Among the various types of mosquitoes in Virginia, five stand out because of how often they bite, how quickly they are spreading, or how much disease risk they carry. Understanding these species is the first step toward smarter mosquito control at home.
Some of these mosquitoes have lived in Virginia for generations. Others arrived only in the past decade and are still expanding their range northward. Together, they illustrate how the state’s warm, humid climate and abundant water sources make it a year-round battleground between people and biting insects.
1. The Asian Tiger Mosquito
The Asian tiger mosquito, Aedes albopictus, is native to the tropical and subtropical regions of Southeast Asia and has spread to many countries through global trade and travel over the past few centuries. Once it arrived in the United States, it found Virginia’s climate especially welcoming. The Virginia Mosquito Control Association reports the Asian tiger mosquito, an invasive species, is the mosquito that is number one when it comes to biting people living in Virginia.
Unlike many mosquitoes that hunt at dusk or dawn, this species behaves differently. Asian tiger mosquitoes are active during daylight hours and avoid open, sunlit sights, spending much of their time as adults resting in dense foliage waiting for a potential host to come along. Residents in Northern Virginia notice it especially often, since it is the most aggressive and widespread mosquito in the region, easily recognized by its black-and-white striped body and legs.
Breeding sites are part of what makes this species so hard to control. It thrives in small, water-filled containers such as gutters, toys, planters, bucket lids, birdbaths, and trash cans. Females are also picky about where they lay eggs, showing a preference for laying eggs above the water surface on dark rounded vertical surfaces, with field studies showing a preference for black, red, or woody substrates, according to Rutgers University’s Center for Vector Biology.
The species has also reshaped local mosquito communities. Research cited by Lake Forest College notes that in Florida, Aedes aegypti has seen a tremendous decline in abundance as a direct result of the Asian tiger mosquito integrating into the environment, and the same competitive pressure has affected the native Eastern treehole mosquito, which resides in tires, cemetery vases, and treeholes. Virginia’s own insect communities, including the various caterpillar species found across the state, share many of the same container and woodland habitats that this mosquito exploits.
Pro Tip: Because the Asian tiger mosquito breeds in containers as small as a bottle cap, walking the yard once a week to dump standing water is often more effective than any spray treatment.
2. Virginia’s Newest Invasive Mosquito Arrival
Culex coronator is a Neotropical species first described in Trinidad in the early twentieth century, and it has since expanded its range dramatically across the Americas. According to research published in the Journal of the American Mosquito Control Association, a single adult female Culex coronator was collected on November 1, 2016, in Suffolk, Virginia, in a BG-Sentinel 2 trap during routine mosquito surveillance. That single specimen mattered a great deal to entomologists, because it represented the first record of this species in the state of Virginia and the northernmost record in the USA, as documented on PubMed.
Its arrival was not an isolated event. Species from the Culex coronator complex were first detected in the United States in the state of Louisiana in 2004 and were subsequently detected in Florida in 2005, reaching Miami-Dade County in 2008, per a study in Scientific Reports. That steady northward march eventually reached Virginia’s coastal plain, mirroring how other invasive insects have crept into new territory across states such as Texas and the broader Gulf Coast.
Health officials pay close attention to this species because it is a Neotropical species and potential vector of Saint Louis and West Nile viruses. Its discovery pushed Virginia’s confirmed mosquito species count upward, and researchers with the Virginia Mosquito Control Association note that this addition, along with Culex nigripalpus, increased the number of confirmed species in the state to 58, with links provided to supporting literature in the state and surrounding areas.
Key Insight: A single trap capture in 2016 was enough to confirm a completely new species record for Virginia, showing how closely mosquito surveillance programs track even rare detections.
3. The Florida SLE Mosquito Moving North
Culex nigripalpus, commonly called the Florida SLE mosquito, is a medium-sized, dark, blood-feeding mosquito that has historically been associated with warmer climates. It has been documented across a wide swath of the Americas, with confirmed records in Anguilla, Bahamas, Barbados, Belize, Brazil, Colombia, Costa Rica, Cuba, and the United States, among many other countries.
Its arrival in Virginia followed the same pattern of gradual range expansion seen in Culex coronator. Entomologists documented this shift in a paper titled “Culex Nigripalpus Distribution Expansion: First Record in Virginia, New County Records in North Carolina, and Revised United States Map,” authored by researchers including Karen Akaratovic. The Virginia Mosquito Control Association’s own species list confirms the timing, noting that since publication of the state’s mosquito identification guide, Culex coronator and Culex nigripalpus have both been found in Virginia, increasing the number of species in the state to 58.
This species carries its common name for a reason. As part of the broader Culex genus, it is grouped with mosquitoes capable of transmitting encephalitis viruses, which is why Virginia’s mosquito control programs continue expanding surveillance efforts along the state’s southeastern coastal plain, where warmer microclimates make establishment more likely.
The same warming trend has allowed other tropical-origin insects to push into temperate parts of North America, a pattern also visible among species profiled in guides to Amazon rainforest insects that occasionally hitch rides northward through global trade routes.
4. The Eastern Treehole Mosquito
Not every mosquito on this list is a recent arrival. Aedes triseriatus, known as the Eastern treehole mosquito, is native to the eastern United States and has lived in Virginia’s forests for far longer than its invasive neighbors. True to its name, this species favors natural cavities, and research from Lake Forest College notes it resides in tires, cemetery vases, and treeholes rather than open water sources.
Its habitat preferences often put it in direct competition with introduced species. Entomologists at Rutgers University have observed that in North America, the Asian tiger mosquito is commonly found with Aedes aegypti, Ae. triseriatus, and Culex species, sharing the same container and cavity habitats. Because the Asian tiger mosquito tends to dominate these shared spaces, native treehole mosquito populations have declined in some regions as the invasive species has expanded.
Public health researchers also study this species for its role in disease transmission. A study published by researchers at the University of Wisconsin, titled “Culex pipiens and Aedes triseriatus Mosquito Susceptibility to Zika Virus,” examined Zika virus vector competence alongside Aedes aegypti and Aedes albopictus, underscoring why even native species remain part of ongoing arbovirus monitoring in the state. Virginia’s mosquito control association keeps detailed records of this species too, citing supporting research from Chan et al. 2020, Barker et al. 2003, and Clark and Craig 1985 in its official species documentation.
Common Mistake: Many homeowners assume treehole mosquitoes only live deep in the woods, but this species readily breeds in old tires, clogged gutters, and neglected planters close to the house.
5. The Yellow Fever Mosquito
Aedes aegypti, widely known as the yellow fever mosquito, is described by Virginia Cooperative Extension as a subtropical mosquito found in some locations in Virginia and a possible carrier of dengue and chikungunya. Unlike the state’s more temperate-adapted species, this mosquito struggles with Virginia’s colder winters, which limits its range to warmer pockets of the state rather than allowing widespread establishment.
Its national footprint, however, is substantial. Public health researchers note that substantial populations of Aedes aegypti mosquitoes exist in more than 16 states across the eastern, southeastern, and southwestern United States, a pattern documented in a 2016 report on Zika virus transmission published in the CDC’s ArboNET system. During the height of the Zika epidemic, researchers considered Aedes aegypti mosquitoes the main vector, though the role of other species in driving and maintaining transmission remained less understood at the time.
Competition from the Asian tiger mosquito has reshaped this species’ range in parts of the Southeast. In Florida, researchers observed that Aedes aegypti has seen a tremendous decline in abundance as a direct result of the Asian tiger mosquito integrating into the environment, a dynamic that may eventually influence how the two species coexist in Virginia’s warmer coastal counties. Virginia health officials have historically tracked cases carefully, noting that while there have been cases of Zika virus reported in Virginia, all cases through 2016 are associated with travel to countries that are Zika-affected, rather than local transmission.
The table below summarizes how these five species compare in appearance, activity, and health significance.
| Mosquito | Appearance | Peak Biting Time | Disease Concern |
|---|---|---|---|
| Asian Tiger Mosquito | Black body with bold white stripes | Daytime | Potential Zika vector |
| Culex Coronator (recent arrival) | Medium brown with pale leg bands | Dusk into night | St. Louis encephalitis, West Nile virus |
| Florida SLE Mosquito | Medium-sized, dark body | Night | St. Louis encephalitis |
| Eastern Treehole Mosquito | Dark body, subtle markings | Daytime in shaded woodland | Zika vector competence studied |
| Yellow Fever Mosquito | Dark body with white lyre-shaped markings | Daytime | Dengue, chikungunya, Zika |
Statewide, mosquitoes remain one of Virginia’s most persistent seasonal nuisances, and health officials consistently point to the same set of illnesses. The most common diseases transmitted by mosquitoes in Virginia are West Nile virus, Eastern equine encephalitis, La Crosse encephalitis, and St. Louis encephalitis.
Because so many species breed in artificial containers rather than natural wetlands, personal prevention matters as much as community-wide control programs. Virginia Cooperative Extension recommends a simple weekly habit: empty any water-filled containers near dwellings and outbuildings each week, since mosquitoes can also breed in tarps or awnings that catch water, a tip detailed further on the Virginia Tech Extension mosquito control page.
Tracking new arrivals like Culex coronator and the Florida SLE mosquito alongside long-established species such as the Eastern treehole mosquito gives a clearer picture of how Virginia’s insect landscape keeps shifting. The same forces driving these mosquito range expansions, warming temperatures, global trade, and urban container habitats, also shape insect distributions from New York to Ohio and even into Canada.
For readers curious about the state’s broader invertebrate diversity, from moths to the many caterpillar species found across North America, Virginia’s mix of native woodland species and newly established tropical arrivals reflects patterns seen throughout the wider insect world. Staying informed about which species are moving in, and why, remains one of the most practical tools homeowners have for reducing bites and protecting their families each season.