Thecla formosana
In 3 days ~10% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taipei | 🇹🇼 Taiwan |
Rare
Under 5% of wildlife watchers report a Thecla formosana sighting in Taipei on a given day, based on 31 verified sightings from GBIF citizen-science data. It is the 307th most-seen of the 765 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.
April and May
In those months about 10% of wildlife watchers report a Thecla formosana in Taipei on a given day, against under 5% in June to March, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Thecla formosana sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Taipei, in our data
Taipei is the only city on Wallace's Line with enough records to rate Thecla formosana sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Lycaenidae
The closest relatives of the Thecla formosana that you can see in Taipei (family Lycaenidae, Gossamer-winged Butterflies) are Pale Grass Blue (about 20%), Metallic Cerulean (about 20%) and Dark Cerulean (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Thecla formosana is recorded against all the insects logged in Taipei (31 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.
