Prosotas lutea
In 3 days ~10% in a week ~20%
Prosotas lutea or Brown Lineblue is a species of blue (Lycaenidae) butterfly found in Asia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report a Brown Lineblue sighting in Singapore on a given day, based on 43 verified sightings from GBIF citizen-science data. It is the 458th most-seen of the 1045 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.
May, October and December
In those months about 10% of wildlife watchers report a Brown Lineblue in Singapore on a given day, against under 5% in January–April, June–September and November, the lowest months.
Only Singapore, in our data
Singapore is the only city on Wallace's Line with enough records to rate Brown Lineblue sightings: under 5% of wildlife watchers there report one on a given day.
Same genus: Prosotas
The closest relatives of the Brown Lineblue that you can see in Singapore (genus Prosotas, Line Blues) are Tailless Lineblue (about 10%) and Common Line Blue (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown Lineblue is recorded against all the insects logged in Singapore (43 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.
