Falcaria bilineata
In 3 days ~20% in a week ~30%
Falcaria bilineata, the two-lined hooktip moth, is a moth in the family Drepanidae, that was first described by Packard in 1864. It is found in North America, where it has been recorded from Newfoundland to New Jersey, west to Oregon and north to British Columbia. The habitat consists of deciduous woodlands.
The wingspan is 28–33 mm. Adults are on wing from April to September in two generations per year. The larvae feed on the leaves of Alnus and Betula species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada | |
| 2 | Acadia National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Two-Lined Hooktip sighting in Acadia National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 224th most-seen of the 405 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June and July
In those months about 10% of wildlife watchers report a Two-Lined Hooktip in Acadia National Park on a given day, against under 5% in August to May, the lowest months.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Two-Lined Hooktip sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Two-Lined Hooktip sightings, Acadia National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Great Bear Rainforest (Canada, about 10%).
Same family: Drepanidae
The closest relatives of the Two-Lined Hooktip that you can see in Acadia National Park (family Drepanidae, Hooktip and False Owlet Moths) are Arched Hooktip Moth (about 10%) and Rose Hooktip (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Two-Lined Hooktip is recorded against all the insects logged in Acadia National Park (9 verified sightings from 2019 to 2026), 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.
