Chalcosyrphus piger
In 3 days ~10%
Chalcosyrphus (Xylotomima) piger (Fabricius, 1794), the short-haired leafwalker, is an uncommon species of syrphid fly found throughout North America and Europe. Hoverflies get their names from the ability to remain nearly motionless while in flight. The adults are also known as flower flies, for they are commonly found around and on flowers, from which they get both energy-giving nectar and protein-rich pollen. Larvae have been identified from sappy hollows from Larix and Pinus.
Europe, Canada, United States.(see distribution map) Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Short-Haired Leafwalker sighting in Toronto on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 1068th most-seen of the 1689 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 Short-Haired Leafwalker in Toronto on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Short-Haired Leafwalker sightings, Toronto ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Short-Haired Leafwalker is recorded against all the insects logged in Toronto (10 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.
