Pseudothyatira cymatophoroides
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Tufted Thyatirine Moth sighting in Vancouver on a given day, based on 15 verified sightings from GBIF citizen-science data. It is the 314th most-seen of the 482 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.
July
In that month about 10% of wildlife watchers report a Tufted Thyatirine Moth in Vancouver on a given day, against under 5% in August to June, the lowest months. That is one of Vancouver's driest months, with about 25 mm of rain against 210 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 3 cities where we can rate Tufted Thyatirine Moth sightings, Vancouver has the highest daily chance: under 5%. Next come Boston (United States, under 5%) and Toronto (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Tufted Thyatirine Moth is recorded against all the insects logged in Vancouver (15 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.
