Pseudothyatira cymatophoroides
In 3 days ~20% in a week ~40%
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 Pacific Rim National Park Reserve on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 68th most-seen of the 107 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Tufted Thyatirine Moth in Pacific Rim National Park Reserve on a given day, against under 5% in August to May, the lowest months. That is one of Pacific Rim National Park Reserve's driest months, with about 40 mm of rain against 470 mm in November.
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.
Yes
Of the 4 parks where we can rate Tufted Thyatirine Moth sightings, Pacific Rim National Park Reserve has the highest daily chance: about 10%. Next come Great Smoky Mountains National Park (United States, about 10%) and Great Bear Rainforest (Canada, about 10%).
GBIF citizen-science records
It is estimated from how often the Tufted Thyatirine Moth is recorded against all the insects logged in Pacific Rim National Park Reserve (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.
