Callosamia angulifera
In 3 days ~20% in a week ~50%
Callosamia angulifera, the tuliptree silkmoth or giant silkmoth, is a moth of the family Saturniidae. It is found in North America from Massachusetts east through central New York, southern Ontario, and southern Michigan to central Illinois, south to the Florida panhandle and Mississippi.
The wingspan is 8–11 cm (3.1–4.3 in). In the north there is one generation per year, with adults on wing from June to August, while in the south there are two generations per year, with adults on wing from March to April and again in August.
The larvae feed on Liriodendron tulipifera. Adults do not feed. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Philadelphia | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Tulip-Tree Silkmoth sighting in Shenandoah National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 185th most-seen of the 723 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a Tulip-Tree Silkmoth in Shenandoah National Park on a given day, against under 5% in July and September–April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Tulip-Tree Silkmoth sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Tulip-Tree Silkmoth sightings, Shenandoah National Park ranks 2nd at about 10%. The best odds are in Great Smoky Mountains National Park (United States, about 20%).
GBIF citizen-science records
It is estimated from how often the Tulip-Tree Silkmoth is recorded against all the insects logged in Shenandoah National Park (20 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.
