Scopula junctaria
In 3 days ~10% in a week ~20%
Scopula junctaria, the simple wave, is a moth of the family Geometridae. The species was first described by Francis Walker in 1861. It is found in the whole of Canada and the northern United States, south to Maryland, Arizona, and California.
The wingspan is 20–26 millimetres (0.79–1.02 in). Adults are on wing from late May to August. There is one generation per year. The larvae feed on various plants, including chickweed, clover and elm. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Edmonton | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Simple Wave sighting in Edmonton on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 295th most-seen of the 390 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.
June
In that month about 10% of wildlife watchers report a Simple Wave in Edmonton on a given day, against under 5% in July to May, the lowest months. That is one of Edmonton's wettest months, with about 85 mm of rain against 20 mm in February.
Only Edmonton, in our data
Edmonton is the only city on Wallace's Line with enough records to rate Simple Wave sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Simple Wave is recorded against all the insects logged in Edmonton (6 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.
