Aedes japonicus
In 3 days ~10% in a week ~30%
Aedes japonicus, commonly known as the Asian bush mosquito or the Asian rock pool mosquito, was first described by Theobald in 1901 from Tokyo, Japan. They are competent arbovirus vectors known to transmit the West Nile virus as well as Japanese and St. Louis encephalitis. They are listed as an invasive species by the Global Invasive Species Database.
Adults live in forested areas and are day biters, but are apparently reluctant to bite humans. In the laboratory, they feed on chicks and mice but not on reptiles or amphibians. Larvae occur in a wide variety of natural and artificial water retainers such as tree holes and rock holes, usually preferring shaded places and water rich in organic matter. They are found from early spring to early autumn in their native habitat of Central Japan. They overwinter as eggs in cooler regions and larvae in warmer regions.
Adults have a distinctive bronze-colored... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Montreal | 🇨🇦 Canada | |
| 5 | Vienna | 🇦🇹 Austria | |
| 6 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 7 | Washington | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Asian Bush Mosquito sighting in Bavarian Forest National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 964th most-seen of the 1115 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
October
In that month about 20% of wildlife watchers report an Asian Bush Mosquito in Bavarian Forest National Park on a given day, against under 5% in November to August, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Asian Bush Mosquito sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Asian Bush Mosquito sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Diptera
The closest relatives of the Asian Bush Mosquito that you can see in Bavarian Forest National Park (order Diptera, Flies) are Common Drone Fly (about 20%), Marmalade Hover Fly (about 20%) and Yellow-Haired Sun Fly (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Asian Bush Mosquito is recorded against all the insects logged in Bavarian Forest National Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
