Aggressive mosquitoes capable of spreading dengue fever have been detected in Southern California, prompting concerns from local health officials. The Aedes aegypti mosquito, dubbed the 'ankle biter' by residents for its tendency to bite at the lower extremities, has been found in several neighborhoods of Santa Barbara.
The Santa Barbara County Mosquito and Vector Management District confirmed the presence of four Aedes aegypti mosquitoes on October 30th in different parts of the city. Two were found near North Voluntario and East Cota streets, one near Laguna and East Carrillo streets, and another near East Victoria and Olive streets.
This invasive species was also previously identified in the eastern Goleta Valley near Turnpike Road and Calle Real on October 20th, and in Carpinteria in July. The district noted that another non-native species, the Australian backyard mosquito (Aedes notoscriptus), was found on Santa Barbara’s West Side in March and in the Mesa neighborhood in June.
Both Aedes aegypti and Aedes notoscriptus are known for biting during the day, both indoors and outdoors, and frequently target the feet and ankles. Residents have reportedly nicknamed them 'ankle biters' due to their persistent nature.
Local health authorities are urging residents to report any encounters with these aggressive mosquitoes, especially if bitten during daylight hours. The district can be reached by phone at 805-969-5050 or through the contact form on their website.
The influx of these invasive mosquitoes comes as Southern California experiences a significant increase in mosquito populations. Elevated temperatures and the potential for El Niño conditions have created an environment conducive to mosquito breeding. Los Angeles County has recorded over 180 cases of West Nile virus this year, the highest in nearly a decade, according to the local public health department. The native Culex mosquito, a vector for West Nile virus, is spread from wild birds to humans. Orange County officials have also reported trapping a large number of West Nile-positive mosquitoes.