Jamides alecto
In 3 days ~20% in a week ~50%
Jamides alecto, the metallic cerulean, is a small species of butterfly found in the Indomalayan realm but which crosses the Wallace line into the Australasian realm (Celebes). It belongs to the lycaenids or blues family.
Under-side pale pinkish grey, markings white but indistinct: fore wing with two lines across the end of the cell, continued to the hinder margin beyond its middle, two dislocated lines beyond in the fourth, fifth, and sixth interspaces, with a line in the third interspace from between the last two; two rows of submarginal lines and an indistinct marginal line, all three dislocated by the veins: hind wing with three rows of transverse double lines at equal distances apart, and a marginal series, all dislocated by the veins; a brownish spot... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 3 | Taroko National Park | 🇹🇼 Taiwan |
With luck
About 10% of wildlife watchers report a Metallic Cerulean sighting in Doi Inthanon National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 131st most-seen of the 153 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
May
In that month about 30% of wildlife watchers report a Metallic Cerulean in Doi Inthanon National Park on a given day, against under 5% in July to April, the lowest months. That is one of Doi Inthanon National Park's wettest months, with about 290 mm of rain against 20 mm in February.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Metallic Cerulean sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 3
Of the 3 parks where we can rate Metallic Cerulean sightings, Doi Inthanon National Park ranks 2nd at about 10%. The best odds are in Sinharaja Forest Reserve (Sri Lanka, about 20%).
Same family: Lycaenidae
The closest relatives of the Metallic Cerulean that you can see in Doi Inthanon National Park (family Lycaenidae, Gossamer-winged Butterflies) are Pale Hedge Blue (about 20%), Common Pierrot (about 10%) and Common Hedge Blue (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Metallic Cerulean is recorded against all the insects logged in Doi Inthanon National Park (5 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.
