Splendid Dagger

Splendid Dagger

Acronicta superans

Daily sighting probability <5% · Rare
at Boston

In 3 days ~10% in a week ~20%

6 Verified sightings at Boston
6 In 1 park From 2019 to 2026
June Best month
☀️🌙 Day & Night When it's spotted

About the Splendid Dagger

Acronicta superans, the splendid dagger moth, is a moth of the family Noctuidae. The species was first described by Achille Guenée in 1852. The wingspan is 40–45 mm. Adults are on wing from May to August depending on the location. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Acadia National Park 🇺🇸 United States
<5%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Boston 🇺🇸 United States
<5%
2 Montreal 🇨🇦 Canada
<5%
3 Toronto 🇨🇦 Canada
<5%

Before you go

What are the chances of seeing a Splendid Dagger in Boston?

Rare

Under 5% of wildlife watchers report a Splendid Dagger sighting in Boston on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 967th most-seen of the 1200 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.

When is the best time to see a Splendid Dagger in Boston?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Splendid Dagger in Boston on a given day, so our monthly data shows no clear season.

What time of day is best to see a Splendid Dagger?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Splendid Dagger sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.

Is Boston the best place to see a Splendid Dagger?

Yes

Of the 3 cities where we can rate Splendid Dagger sightings, Boston has the highest daily chance: under 5%. Next come Montreal (Canada, under 5%) and Toronto (Canada, under 5%).

Where does the Splendid Dagger sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Splendid Dagger is recorded against all the insects logged in Boston (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.

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