Parnassius glacialis
In 3 days ~10% in a week ~20%
Parnassius glacialis, the glacial Apollo or Japanese clouded Apollo, is a high-altitude butterfly found in Japan, eastern China, and Korea. It is a member of the snow Apollo genus (Parnassius) of the swallowtail family (Papilionidae).
P. glacialis (Takashi et al. 2001) is much larger than Parnassius stubbendorfi of which it was once considered a subspecies. The blackish grey central spot of the cell is sometimes connected with the apical cell-spot by fuscous dusting along the sides of the cell, and the submarginal band of the forewing is more or less distinct and complete. The abdominal area of hindwing is deep black as far as the cell, clothed with white hairs; on and along the veins with blackish dusting. Collar, coxae and abdomen are laterally clothed with yellow or reddish yellow hairs. The wing underside is slightly yellow. In some Japanese specimens (from Hakodate) the cell-spots and the submarginal band of the forewing have entirely disappeared, or are only feebly indicated.
P. glacialis has fifteen subspecies (mostly described by Felix Bryk and Curt Eisner). For a list of subspecies types in the British Museum (Natural History), see Ackery... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tokyo | 🇯🇵 Japan |
Rare
Under 5% of wildlife watchers report a Glacial Apollo sighting in Tokyo on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 872nd most-seen of the 1013 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 Glacial Apollo in Tokyo on a given day, so our monthly data shows no clear season.
Only Tokyo, in our data
Tokyo is the only city on Wallace's Line with enough records to rate Glacial Apollo sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Papilionidae
The closest relatives of the Glacial Apollo that you can see in Tokyo (family Papilionidae, Swallowtails and Parnassians) are Chinese Yellow Swallowtail (about 20%), Common Bluebottle (about 20%) and Chinese Windmill (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Glacial Apollo is recorded against all the insects logged in Tokyo (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.
