Psyche casta
In 3 days ~10% in a week ~20%
Psyche casta is a nocturnal moth from the family Psychidae, the bagworm moths. The wingspan of the males ranges from 12 to 15 millimeters. They have hairy, brown-metallic shiny wings. The grub-like females have legs but do not have wings and are yellowish or light brown, except for some dark brown back plates.
The host plants are from the groups: Poaceae, birch, willow, poplar and Vaccinium. The caterpillars make a protective hull from grass. The flight time ranges from May to July. Originally from the Old World, they have been introduced in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Acadia National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Amsterdam | 🇳🇱 Netherlands | |
| 4 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 5 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 6 | Washington | 🇺🇸 United States | |
| 7 | Philadelphia | 🇺🇸 United States | |
| 8 | Munich | 🇩🇪 Germany | |
| 9 | Vienna | 🇦🇹 Austria | |
| 10 | Miami | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Common Bagworm Moth sighting in Vancouver on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 234th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Common Bagworm Moth in Vancouver on a given day, so our monthly data shows no clear season.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Common Bagworm Moth sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
13th of 18
Of the 18 cities where we can rate Common Bagworm Moth sightings, Vancouver ranks 13th at under 5%. The best odds are in London (United Kingdom, about 10%), Boston (United States, about 10%) and Amsterdam (Netherlands, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Bagworm Moth is recorded against all the insects logged in Vancouver (17 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.
