Loxura atymnus
In 3 days ~20% in a week ~50%
Loxura atymnus, the yamfly, is a species of lycaenid or blue butterfly found in Asia. Male. Uppersicle bright fulvous. Forewing with the apical margin from the middle of the costa increasingly black, and continued down the outer margin, gradually decreasing in width, the inner margin of the black band being in an almost continuous curve. Hindwing with a very narrow, pale ochreous-brown band on the outer margin, some suffusion of this colour being at the base of both wings and continued down the hindwing (the abdominal fold being similarly coloured) and to the end of the tail. Underside dark ochreous-yellow, markings pale blackish. Forewing with two conjoined ring-spots across the middle of the cell, and two similar spots across the end, both somewhat indistinct, the latter with, sometimes, an indistinct spot alcove it, near the costa, a discal, nearly straight band of conjoined ring-spots, the middle one double, the series ending in two black marks in the interno-median interspace, a very indistinct series of sub-marginal lunules. Hindwing with two sub-basal ring-spots, two in the cell and two at the end, all very indistinct; a discal band, slightly inwardly curved... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chattogram | 🇧🇩 Bangladesh | |
| 2 | Kozhikode | 🇮🇳 India | |
| 3 | Thrissur | 🇮🇳 India | |
| 4 | Guwahati | 🇮🇳 India | |
| 5 | Dehradun | 🇮🇳 India | |
| 6 | Singapore | 🇸🇬 Singapore | |
| 7 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 8 | Jakarta | 🇮🇩 Indonesia | |
| 9 | Kochi | 🇮🇳 India | |
| 10 | Mumbai | 🇮🇳 India |
With luck
About 10% of wildlife watchers report a Common Yamfly sighting in Jakarta on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 116th most-seen of the 239 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.
June
In that month about 20% of wildlife watchers report a Common Yamfly in Jakarta on a given day, against under 5% in April, August and October–December, the lowest months. That is one of Jakarta's driest months, with about 90 mm of rain against 370 mm in February.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Common Yamfly sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
8th of 10
Of the 10 cities where we can rate Common Yamfly sightings, Jakarta ranks 8th at about 10%. The best odds are in Chattogram (Bangladesh, about 20%), Kozhikode (India, about 20%) and Thrissur (India, about 20%).
Same family: Lycaenidae
The closest relatives of the Common Yamfly that you can see in Jakarta (family Lycaenidae, Gossamer-winged Butterflies) are Lesser Grass Blue (about 20%), Plains Cupid (about 20%) and Tiny Grass Blue (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Yamfly is recorded against all the insects logged in Jakarta (12 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.
