Polytremis lubricans
In 3 days ~30% in a week ~60%
Polytremis lubricans, the contiguous swift, is a butterfly belonging to the family Hesperiidae. It is found in the Indomalayan realm. Polytremis lubricans lubricans (Tibet, India, Indo-China, Yunnan, Malay Peninsula, Sumatra, Java, Borneo, Philippines, Sulawesi, Sangihe, Banggai, Sula)
Differs in the fore wings being slightly more elongate, the hind wing more convex exteriorly, and the anal angle less lobed; markings above similar, those on the fore wing narrower, the spot between the. median branches elongated and extending to their basal angle; those on the hind wing very small, the outer spot crossed by a vein. Underside brownish-ochreous; base of fore wing slightly dusky-ochreous; markings as above.
The larva on feeds on Imperata, Microstegium, Miscanthus Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Contiguous Swift sighting in Tuen Mun on a given day, based on 47 verified sightings from GBIF citizen-science data. It is the 141st most-seen of the 557 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.
July
In that month about 30% of wildlife watchers report a Contiguous Swift in Tuen Mun on a given day, against under 5% in November to January, the lowest months. That is one of Tuen Mun's wettest months, with about 200 mm of rain against 20 mm in December.
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Contiguous Swift sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 7 cities where we can rate Contiguous Swift sightings, Tuen Mun has the highest daily chance: about 10%. Next come Kochi (India, about 10%) and Singapore (Singapore, about 10%).
Same family: Hesperiidae
The closest relatives of the Contiguous Swift that you can see in Tuen Mun (family Hesperiidae, Skippers) are Indian Palm Bob (about 20%), Formosan Swift (about 20%) and Grass Demon (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Contiguous Swift is recorded against all the insects logged in Tuen Mun (47 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.
