Clanis bilineata
In 3 days ~20% in a week ~40%
Clanis bilineata, the two-lined velvet hawkmoth, is a species of moth in the family Sphingidae first described by Francis Walker in 1866. It is found in Asia, but see the subspecies section for a detailed range. Adults of the nominate subspecies are on wing from late February until October, with peaks in April, late July-early August, and mid-September in Hong Kong. There are multiple generations per year. Subspecies C. b. tsingtauica is on wing from May to late September in Korea.
Larvae of the nominate subspecies have been recorded on Pongamia pinnata, Millettia atropurpurea and Pterocarpus marsupium in India. In southern China it has been recorded from Mucuna and Pueraria. Some authors recognise three distinct subspecies, while others regard them as synonyms:
Clanis bilineata bilineata (southern India, then from Nepal and northern India (Sikkim) across southern China to Taiwan) Clanis bilineata formosana (Taiwan) Clanis bilineata tsingtauica (the Russian Far East, Japan, Korea and north-eastern China, as far... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Clanis bilineata sighting in Seoul on a given day, based on 35 verified sightings from GBIF citizen-science data. It is the 92nd most-seen of the 525 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Clanis bilineata in Seoul on a given day, against under 5% in September to May, the lowest months. That is one of Seoul's wettest months, with about 360 mm of rain against 20 mm in January.
Yes
Of the 5 cities where we can rate Clanis bilineata sightings, Seoul has the highest daily chance: about 10%. Next come Bengaluru (India, under 5%) and Osaka (Japan, under 5%).
Same family: Sphingidae
The closest relatives of the Clanis bilineata that you can see in Seoul (family Sphingidae, Sphinx Moths) are Theretra japonica (about 10%), Convolvulus Hawkmoth (about 10%) and Elephant Hawkmoth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Clanis bilineata is recorded against all the insects logged in Seoul (35 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.
