Gnophaela vermiculata
In 3 days ~60% in a week ~90%
Gnophaela vermiculata, sometimes known as the police-car moth or green lattice, is a moth of the family Erebidae. The species was first described by Augustus Radcliffe Grote in 1864. It is found in the Rocky Mountain region of the United States and in western parts of North America, from British Columbia to California, east to New Mexico and north to Alberta Manitoba.
The wingspan is about 54 millimetres (2.1 in). Adults are on wing in late summer and fly during the day. There is one generation per year. The larva is born with yellower patches but eventually grows into the adult coloring. As larvae, they feed on Mertensia, Lithospermum and Hackelia species. Adults feed on nectar of various herbaceous flowers, including Cirsium and Solidago.
It can be confused with Gnophaela latipennis because of the similarity in their pattern. The latter species has smaller pale areas on its wings and more rounded forewing margins. Cotinis (June 19, 2013). "Species Gnophaela vermiculata - Police Car Moth - Hodges#8037". BugGuide. Retrieved September 6, 2019.
Robinson, E. & Schmidt, B. C. "Species Details Gnophaela vermiculata". University of Alberta Museums. E.H. Strickland Entomological... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Elk Island National Park | 🇨🇦 Canada | |
| 2 | Rocky Mountain National Park | 🇺🇸 United States | |
| 3 | Glacier National Park | 🇺🇸 United States | |
| 4 | Jasper National Park | 🇨🇦 Canada | |
| 5 | Banff National Park | 🇨🇦 Canada | |
| 6 | Yellowstone National Park | 🇺🇸 United States | |
| 7 | Grand Teton National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Calgary | 🇨🇦 Canada | |
| 2 | Edmonton | 🇨🇦 Canada | |
| 3 | Salt Lake City | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Police Car Moth sighting in Glacier National Park on a given day, based on 91 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 7th most-seen of the 147 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
July and August
In those months about 30% of wildlife watchers report a Police Car Moth in Glacier National Park on a given day, against under 5% in January, March–May and September–October, the lowest months. Those are among Glacier National Park's driest months, with about 30 mm of rain a month against 80 mm in February.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Police Car Moth sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 7
Of the 7 parks where we can rate Police Car Moth sightings, Glacier National Park ranks 3rd at about 20%. The best odds are in Elk Island National Park (Canada, about 40%) and Rocky Mountain National Park (United States, about 30%).
Same family: Erebidae
The closest relatives of the Police Car Moth that you can see in Glacier National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Spotted Tussock Moth (about 30%), Virginian Tiger Moth (about 10%) and Rusty Tussock Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Police Car Moth is recorded against all the insects logged in Glacier National Park (91 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.
