Tanaoctenia haliaria
In 3 days ~30% in a week ~50%
Tanaoctenia haliaria is a species of moth of the family Geometridae first described by Francis Walker in 1861. It is found in Taiwan, Nepal, China (Xizang), north-eastern India and Myanmar. The wingspan is 31–45 mm. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Tanaoctenia haliaria sighting in Taroko National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 196th most-seen of the 447 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
December
In that month about 20% of wildlife watchers report a Tanaoctenia haliaria in Taroko National Park on a given day, against under 5% in February, August and October–November, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Tanaoctenia haliaria sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Taroko National Park, in our data
Taroko National Park is the only park on Wallace's Line with enough records to rate Tanaoctenia haliaria sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Tanaoctenia haliaria that you can see in Taroko National Park (family Geometridae, Geometer Moths) are Biston perclara (about 10%), Agathia laetata (about 10%) and Comostola laesaria (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tanaoctenia haliaria is recorded against all the insects logged in Taroko National Park (11 verified sightings from 2019 to 2026), 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.
