Acronicta fragilis
In 3 days ~10% in a week ~20%
Acronicta fragilis, the fragile dagger moth, is a moth of the family Noctuidae. The species was first described by Achille Guenée in 1852. It is found in North America from Newfoundland to Florida, west across Canada, south to Kentucky and Minnesota. It is listed as a species of special concern in the US state of Connecticut.
The wingspan is about 30 mm. Adults are on wing from June to July depending on the location. The larvae feed on apple, birch, plum, willow, and white spruce. 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 Fragile Dagger sighting in Edmonton on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 336th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Fragile Dagger in Edmonton on a given day, so our monthly data shows no clear season.
Only Edmonton, in our data
Edmonton is the only city on Wallace's Line with enough records to rate Fragile Dagger sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Fragile Dagger is recorded against all the insects logged in Edmonton (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.
