Pseudothyatira cymatophoroides
In 3 days ~20% in a week ~30%
Pseudothyatira is a monotypic moth genus of the family Drepanidae first described by Augustus Radcliffe Grote in 1864. Its only species, Pseudothyatira cymatophoroides, the tufted thyatirid moth, was first described by Achille Guenée in 1852. It is found in North America in Newfoundland, British Columbia, northern California, Maryland, West Virginia, Kansas and North Carolina.
The wingspan is 38–44 mm. The moth flies from June to September depending on the location. The larvae feed on Betula nigra, Betula populifolia and Prunus virginiaca. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pacific Rim National Park Reserve | 🇨🇦 Canada | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 3 | Great Bear Rainforest | 🇨🇦 Canada | |
| 4 | Shenandoah National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Tufted Thyatirine Moth sighting in Great Bear Rainforest on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 137th most-seen of the 235 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.
July and September–October
In those months about 10% of wildlife watchers report a Tufted Thyatirine Moth in Great Bear Rainforest on a given day, against under 5% in August and November–June, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Tufted Thyatirine Moth 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.
Among the best
Of the 4 parks where we can rate Tufted Thyatirine Moth sightings, Great Bear Rainforest ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Pacific Rim National Park Reserve (Canada, about 10%) and Great Smoky Mountains National Park (United States, about 10%).
Same family: Drepanidae
The closest relatives of the Tufted Thyatirine Moth that you can see in Great Bear Rainforest (family Drepanidae, Hooktip and False Owlet Moths) are Lettered Habrosyne Moth (about 10%) and Two-Lined Hooktip (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tufted Thyatirine Moth is recorded against all the insects logged in Great Bear Rainforest (10 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.
