What are the chances of seeing a Thaumatomyia glabra in Chicago?
Rare
Under 5% of wildlife watchers report a Thaumatomyia glabra sighting in Chicago on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 706th most-seen of the 978 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.
When is the best time to see a Thaumatomyia glabra in Chicago?
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Thaumatomyia glabra in Chicago on a given day, so our monthly data shows no clear season.
Is Chicago the best place to see a Thaumatomyia glabra?
Among the best
Of the 12 cities where we can rate Thaumatomyia glabra sightings, Chicago ranks 9th at under 5%, level with the leaders once rounded. The best odds are in Portland (United States, under 5%), Minneapolis [Saint Paul] (United States, under 5%) and Sacramento (United States, under 5%).
Which relatives of the Thaumatomyia glabra live in Chicago?
Same order: Diptera
The closest relatives of the Thaumatomyia glabra that you can see in Chicago (order Diptera, Flies) are Margined Calligrapher (about 10%), Narrow-Headed Marsh Fly (about 10%) and Common Picture-Winged Fly (about 10%), with each one's daily chance of a sighting.
Where does the Thaumatomyia glabra sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Thaumatomyia glabra is recorded against all the insects logged in Chicago (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.