Hyarotis adrastus
In 3 days ~40% in a week ~60%
Hyarotis adrastus, the tree flitter, is a butterfly belonging to the family Hesperiidae found in South Asia and Southeast Asia. Male and female, dark chocolate-brown. Upperside, forewing with three small conjugated subapical semi-transparent white spots, three similar and larger discal spots, and a fourth above them within the cell. Underside darker brown basally, paler exteriorly; forewing with spots as above, bordered externally by a suffused dark brown streak; hindwing with a double series of white dark brown-outer-bordered lunules crossing the middle of the wing, beyond which is a submarginal series of suffused dark brown spots. Palpi, thorax, and abdomen beneath pale greyishbrown. Legs brown. Cilia yellowish- white, spotted with pale brown.
Bengal. (Moore in P. Z. S.) Recorded from Ceylon (Hutchison, Wade, Mackwood); Andamans, Cachar (Wood-Mason and de Nicéville); Sikkim (de Nicéville; Elwes); Calcutta (de Nicéville); Kumaon (Doherty); Kangra, N.-W. Himalayas (Moore) Orissa (Taylor); Nilgiris (Hampson).Burma, Andamans, Thailand, Laos, Vietnam, Hainan, Hong Kong, Malaysia, Tioman, Singapore, Borneo, Sumatra, Java, Palawan, Philippines.
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taman Negara National Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Tree Flitter sighting in Taman Negara National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 64th most-seen of the 84 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 60%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Tree Flitter in Taman Negara National Park on a given day, against under 5% in April–May and August–January, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Tree Flitter sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Taman Negara National Park, in our data
Taman Negara National Park is the only park on Wallace's Line with enough records to rate Tree Flitter sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Hesperiidae
The closest relatives of the Tree Flitter that you can see in Taman Negara National Park (family Hesperiidae, Skippers) are Yellow Banded Awl (about 20%) and Chocolate Demon (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tree Flitter is recorded against all the insects logged in Taman Negara 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.
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