Euchlaena serrata
In 3 days ~10%
Euchlaena serrata, the saw-wing moth, is a species of moth of the family Geometridae. It is found in eastern North America. The wingspan is 40 to 47 millimetres (1.6 to 1.9 in). Adults are on wing from April to August. The larvae feed on Pyrus, Malus, Acer and Vaccinium species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Saw-Wing sighting in Chicago on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 884th most-seen of the 978 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 Saw-Wing in Chicago on a given day, so our monthly data shows no clear season.
Only Chicago, in our data
Chicago is the only city on Wallace's Line with enough records to rate Saw-Wing sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Saw-Wing that you can see in Chicago (family Geometridae, Geometer Moths) are Chickweed Geometer Moth (about 10%), Common Tan Wave (about 10%) and Lesser Maple Spanworm Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Saw-Wing is recorded against all the insects logged in Chicago (5 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.
