What are the chances of seeing a Heteralex unilinea in Tuen Mun?
Rare
Under 5% of wildlife watchers report a Heteralex unilinea sighting in Tuen Mun on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 441st most-seen of the 557 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.
When is the best time to see a Heteralex unilinea in Tuen Mun?
April–May and July
In those months about 10% of wildlife watchers report a Heteralex unilinea in Tuen Mun on a given day, against under 5% in June and August–March, the lowest months. Those are among Tuen Mun's wettest months, with about 180 mm of rain a month against 20 mm in December.
Is Tuen Mun the best place to see a Heteralex unilinea?
2nd of 2
Of the 2 cities where we can rate Heteralex unilinea sightings, Tuen Mun ranks 2nd at under 5%. The best odds are in Hong Kong (China, about 10%).
Which relatives of the Heteralex unilinea live in Tuen Mun?
Same family: Geometridae
The closest relatives of the Heteralex unilinea that you can see in Tuen Mun (family Geometridae, Geometer Moths) are False Tiger Moth (about 20%), Black Looper (about 10%) and Problepsis vulgaris (about 10%), with each one's daily chance of a sighting.
Where does the Heteralex unilinea sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Heteralex unilinea is recorded against all the insects logged in Tuen Mun (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.