Platycheirus trichopus
In 3 days ~10% in a week ~20%
Platycheirus trichopus, the western forest sedgesitter, is a species of syrphid fly in the Bacchini tribe of the Syrphidae family. This flower fly is typically found west of the Rocky Mountains in North America. Most Platycheirus species cannot be identified past genus without microscopic examination, but according to Even Dankowicz, P. trichopus has a unique set of characteristics that make it an exception when/where high quality images of the head/face are available. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sacramento | 🇺🇸 United States | |
| 2 | Vancouver | 🇨🇦 Canada | |
| 3 | Portland | 🇺🇸 United States | |
| 4 | San Francisco | 🇺🇸 United States | |
| 5 | San Diego | 🇺🇸 United States | |
| 6 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Western Forest Sedgesitter sighting in San Diego on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 393rd most-seen of the 693 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Western Forest Sedgesitter in San Diego on a given day, so our monthly data shows no clear season.
Among the best
Of the 6 cities where we can rate Western Forest Sedgesitter sightings, San Diego ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Sacramento (United States, under 5%), Vancouver (Canada, under 5%) and Portland (United States, under 5%).
Same family: Syrphidae
The closest relatives of the Western Forest Sedgesitter that you can see in San Diego (family Syrphidae, Hover Flies) are Oblique Streaktail (about 10%), Margined Calligrapher (about 10%) and Common Grass Skimmer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Forest Sedgesitter is recorded against all the insects logged in San Diego (14 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.
