Arhopala anthelus
In 3 days ~30% in a week ~60%
Arhopala anthelus, the angelus bush blue, is a species of lycaenid or blue butterfly found in the Indomalayan realm. Male. Upperside : both wings brilliant shining violet-blue; the primaries with black linear costa and posterior margin; secondaries with broadish brown costa, linear black posterior margin, and very pale grey abdominal fold. Tail black, white-tipped. Underside : both wings pale greyish brown, with dark spots broadly edged with whitish. Primaries with three large increasing spots, touching the second of which are two or three somewhat confluent spots up to the costal nervure.
Upperside : both wings violet, with very broad brown costal and posterior margins to primaries and less broad borders to the secondaries. In the female the whole distal halves of the wings above are darkened, the black margin of the wings being 3 to 4 mm broad... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sepilok | 🇲🇾 Malaysia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Magnificent Oakblue sighting in Sepilok on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 48th most-seen of the 87 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
January
In that month about 30% of wildlife watchers report a Magnificent Oakblue in Sepilok on a given day, against under 5% in February–March, May, September and November–December, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Magnificent Oakblue sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Sepilok, in our data
Sepilok is the only park on Wallace's Line with enough records to rate Magnificent Oakblue sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Lycaenidae
The closest relatives of the Magnificent Oakblue that you can see in Sepilok (family Lycaenidae, Gossamer-winged Butterflies) are Dark Posy (about 10%) and Plains Cupid (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Magnificent Oakblue is recorded against all the insects logged in Sepilok (9 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.
