Hyalophora gloveri
In 3 days ~10% in a week ~20%
Hyalophora gloveri, or Glover's silkmoth, is a moth of the family Saturniidae. The species was first described by Ferdinand Heinrich Hermann Strecker in 1872. It is found in the Rocky Mountain states, the western parts of the northern Great Plains, and the Canadian prairie provinces, north-west to at least central Alberta. It is also found in northern Mexico.
It is considered a subspecies of Hyalophora columbia by several authorities. The wingspan is about 100 mm. The larvae feed on Shepherdia argentea, Elaeagnus angustifolia, Salix species, etc. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grand Teton National Park | 🇺🇸 United States | |
| 2 | Elk Island National Park | 🇨🇦 Canada | |
| 3 | Zion National Park | 🇺🇸 United States | |
| 4 | Rocky Mountain National Park | 🇺🇸 United States | |
| 5 | Grand Canyon National Park | 🇺🇸 United States | |
| 6 | Yellowstone National Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Glover's Silkmoth sighting in Calgary on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 203rd most-seen of the 256 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 Glover's Silkmoth in Calgary on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Glover's Silkmoth sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Glover's Silkmoth sightings, Calgary has the highest daily chance: under 5%. Next come Denver (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Glover's Silkmoth is recorded against all the insects logged in Calgary (6 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.
