Conchopus borealis
In 3 days ~10%
Thambemyia borealis (or Conchopus borealis) is a species of fly in the family Dolichopodidae. It is native to Japan, where it can be found in intertidal zones of rocky shores, and has been introduced to coastal sites near major seaports in California, Alabama, New Jersey and Peru. Adults are predators of chironomid larvae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Diego | 🇺🇸 United States | |
| 2 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Conchopus borealis sighting in San Diego on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 519th most-seen of the 693 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Conchopus borealis in San Diego on a given day, so our monthly data shows no clear season.
Yes
Of the 2 cities where we can rate Conchopus borealis sightings, San Diego has the highest daily chance: under 5%. Next come San Francisco (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Conchopus borealis is recorded against all the insects logged in San Diego (8 verified sightings), 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.
