Psyche casta
In 3 days ~10% in a week ~30%
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 Rotterdam [The Hague] on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 265th most-seen of the 355 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May–June and August
In those months about 10% of wildlife watchers report a Common Bagworm Moth in Rotterdam [The Hague] on a given day, against under 5% in July and September–April, the lowest months.
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.
5th of 18
Of the 18 cities where we can rate Common Bagworm Moth sightings, Rotterdam [The Hague] ranks 5th at under 5%. The best odds are in London (United Kingdom, about 10%), Boston (United States, about 10%) and Amsterdam (Netherlands, about 10%).
Same order: Lepidoptera
The closest relatives of the Common Bagworm Moth that you can see in Rotterdam [The Hague] (order Lepidoptera, Butterflies and Moths) are Red Admiral (about 30%), Speckled Wood (about 30%) and European Peacock Butterfly (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Bagworm Moth is recorded against all the insects logged in Rotterdam [The Hague] (7 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.
