Lomographa glomeraria
In 3 days ~10% in a week ~20%
Lomographa glomeraria, the gray spring moth, is a moth of the family Geometridae. The species was first described by Augustus Radcliffe Grote in 1881. It is found in eastern North America, including Alabama, Arkansas, Illinois, Indiana, Maryland, Massachusetts, Michigan, Oklahoma, Ontario, Pennsylvania and Tennessee.
The wingspan is about 25 mm. The larvae feed on Prunus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Gray Spring Moth sighting in Montreal on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 842nd most-seen of the 926 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 Gray Spring Moth in Montreal on a given day, so our monthly data shows no clear season.
Only Montreal, in our data
Montreal is the only city on Wallace's Line with enough records to rate Gray Spring Moth sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Gray Spring Moth is recorded against all the insects logged in Montreal (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.
