Polytremis lubricans
In 3 days ~10% in a week ~20%
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.
Rare
Under 5% of wildlife watchers report a Contiguous Swift sighting in Hong Kong on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 819th most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July and September
In those months about 10% of wildlife watchers report a Contiguous Swift in Hong Kong on a given day, against under 5% in August and October–June, the lowest months. Those are among Hong Kong's wettest months, with about 170 mm of rain a month against 25 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.
6th of 7
Of the 7 cities where we can rate Contiguous Swift sightings, Hong Kong ranks 6th at under 5%. The best odds are in Tuen Mun (China, about 10%), Kochi (India, about 10%) and Singapore (Singapore, about 10%).
Same family: Hesperiidae
The closest relatives of the Contiguous Swift that you can see in Hong Kong (family Hesperiidae, Skippers) are Indian Palm Bob (about 10%), Formosan Swift (about 10%) and Pale Awlet (about 10%), 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 Hong Kong (8 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.
