Arhopala atosia
In 3 days ~10% in a week ~20%
Arhopala atosia is a species of butterfly belonging to the lycaenid family described by William Chapman Hewitson in 1869. Above the male is not lilac, but mostly dark blue with a very feeble violet tint, although also more intensely lilac-tinged specimens have been ascertained. Beneath very similar to pseudomuta, but in the female the postdiscal band of the hindwing is more irregular, and the 4th spot of the
postmedian band of the forewing still more distally removed. The female has a black distal margin of about 3 mm width. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 2 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report a Tailed Disc Oakblue sighting in Singapore on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 788th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Tailed Disc Oakblue in Singapore on a given day, so our monthly data shows no clear season.
2nd of 2
Of the 2 cities where we can rate Tailed Disc Oakblue sightings, Singapore ranks 2nd at under 5%. The best odds are in Kuala Lumpur (Malaysia, about 10%).
Same genus: Arhopala
The closest relatives of the Tailed Disc Oakblue that you can see in Singapore (genus Arhopala, Oakblues) are Dull Oak-Blue (about 10%), Aberrant Oakblue (about 10%) and Major Yellow Oakblue (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tailed Disc Oakblue is recorded against all the insects logged in Singapore (8 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.
