Scopula limboundata
In 3 days ~20% in a week ~40%
Scopula limboundata, the large lace-border, is a moth of the family Geometridae. It was described by Adrian Hardy Haworth in 1809. It is found in North America east of the Rocky Mountains. There is a single and unconfirmed record from Great Britain.
The wingspan is 25–30 millimetres (0.98–1.18 in). Adults are on wing from late May to late August or early September. The larvae feed on apple, blueberry, clover, dandelion, meadow-beauty, and black cherry. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Toronto | 🇨🇦 Canada | |
| 4 | Edmonton | 🇨🇦 Canada | |
| 5 | Chicago | 🇺🇸 United States | |
| 6 | Philadelphia | 🇺🇸 United States | |
| 7 | Boston | 🇺🇸 United States | |
| 8 | Montreal | 🇨🇦 Canada | |
| 9 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 10 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Large Lace-Border Moth sighting in Baltimore on a given day, based on 42 verified sightings from GBIF citizen-science data. It is the 125th most-seen of the 705 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May to September
In those months about 10% of wildlife watchers report a Large Lace-Border Moth in Baltimore on a given day, against under 5% in October to April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Large Lace-Border Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 12 cities where we can rate Large Lace-Border Moth sightings, Baltimore has the highest daily chance: about 10%. Next come Washington (United States, about 10%) and Toronto (Canada, under 5%).
Same family: Geometridae
The closest relatives of the Large Lace-Border Moth that you can see in Baltimore (family Geometridae, Geometer Moths) are Common Tan Wave (about 10%), Large Maple Spanworm Moth (about 10%) and Tulip-Tree Beauty (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Large Lace-Border Moth is recorded against all the insects logged in Baltimore (42 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.
