Acronicta innotata
In 3 days ~10% in a week ~20%
Acronicta innotata, the unmarked dagger moth or birch dagger, is a moth of the family Noctuidae. The species was first described by Achille Guenée in 1852. It is found from Newfoundland to British Columbia and adjacent northern states in the United States, south in the east to North Carolina and Kentucky.
The wingspan is 35–40 mm. Adults are on wing from May to August depending on the location. The larvae feed on the leaves of alder, birch, cherry, hickory, poplar and willow. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gros Morne National Park | 🇨🇦 Canada |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report an Unmarked Dagger sighting in Montreal on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 749th 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 an Unmarked Dagger in Montreal on a given day, so our monthly data shows no clear season.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Unmarked Dagger sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Montreal, in our data
Montreal is the only city on Wallace's Line with enough records to rate Unmarked 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 Unmarked Dagger is recorded against all the insects logged in Montreal (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.
