The US has a new species of mosquito - but little is known about it
Key Points:
- Researchers in Florida have identified the mosquito species Aedes amateuri in the United States for the first time, specifically in southeastern Arizona's Sky Islands, an area previously unrecorded for this species.
- Aedes amateuri, previously known only in Mexico, feeds on humans and large mammals, but its potential to spread diseases remains unknown, highlighting gaps in knowledge about mosquito species in the U.S.
- The mosquito has been found in specific mountain areas of Arizona and may have spread to neighboring New Mexico, with its detection complicated by its breeding in temporary pools formed after monsoon rains.
- Arizona already hosts over 40 mosquito species, including the invasive Aedes aegypti, which has contributed to the spread of West Nile virus, a disease with severe health impacts, especially in immunocompromised individuals.
- Recent heavy rainfall and record summer temperatures in Arizona create favorable conditions for mosquito proliferation, coinciding with federal data showing Arizona and California currently have the highest West Nile virus cases.