Pediasia trisecta
In 3 days ~10% in a week ~20%
Pediasia trisecta, the large sod webworm or greater sod webworm, is a moth of the family Crambidae. It is found in the United States and southern Canada. The wingspan is 23–33 mm. Adults are on wing from May to October. Adults feed solely on dew.
The larvae feed on various Poaceae species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chicago | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Sod Webworm Moth sighting in Montreal on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 556th 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 Sod Webworm Moth in Montreal on a given day, so our monthly data shows no clear season.
Among the best
Of the 3 cities where we can rate Sod Webworm Moth sightings, Montreal ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Chicago (United States, under 5%).
Same family: Crambidae
The closest relatives of the Sod Webworm Moth that you can see in Montreal (family Crambidae, Crambid Snout Moths) are Box Tree Moth (about 10%), Canadian Petrophila (about 10%) and Elegant Grass-Veneer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sod Webworm Moth is recorded against all the insects logged in Montreal (12 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.
