Physocephala burgessi
In 3 days ~10% in a week ~30%
Physocephala burgessi is a species of thick-headed fly in the family Conopidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Olympic National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Seattle | 🇺🇸 United States | |
| 2 | Portland | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Vancouver | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Physocephala burgessi sighting in Portland on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 192nd most-seen of the 507 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.
May and June
In those months about 10% of wildlife watchers report a Physocephala burgessi in Portland on a given day, against under 5% in July to April, the lowest months. Those are among Portland's driest months, with about 65 mm of rain a month against 250 mm in December.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Physocephala burgessi sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 cities where we can rate Physocephala burgessi sightings, Portland ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Seattle (United States, under 5%).
Same order: Diptera
The closest relatives of the Physocephala burgessi that you can see in Portland (order Diptera, Flies) are Yellow-Haired Sun Fly (about 10%), Black Soldier Fly (about 10%) and Narcissus Bulb Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Physocephala burgessi is recorded against all the insects logged in Portland (25 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.
