Cramptonomyia spenceri
In 3 days ~10% in a week ~20%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Cramptonomyia spenceri sighting in Vancouver on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 328th most-seen of the 482 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.
February
In that month about 10% of wildlife watchers report a Cramptonomyia spenceri in Vancouver on a given day, against under 5% in March to January, the lowest months.
Yes
Of the 3 cities where we can rate Cramptonomyia spenceri sightings, Vancouver has the highest daily chance: under 5%. Next come Seattle (United States, under 5%) and Portland (United States, under 5%).
Same order: Diptera
The closest relatives of the Cramptonomyia spenceri that you can see in Vancouver (order Diptera, Flies) are Black-Margined Flower Fly (about 10%), Common Drone Fly (about 10%) and Common European Greenbottle Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cramptonomyia spenceri is recorded against all the insects logged in Vancouver (9 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.
