Anthocharis scolymus
In 3 days ~20% in a week ~40%
Anthocharis scolymus, the yellow tip, is a butterfly in the subfamily Pierinae whose range is Eastern Asia (East China, Korea, Ussuri) where it is commonplace; occasionally it is found in Japan. The apex of the forewing is produced and falcate (sickle-shaped); white above and below, with dark apical marking and black median spot on the forewing above, and a black spot at the apex of the hindwing; the male moreover, has a moderately large orange spot in the apical area of the forewing, occurring occasionally also in the female (= ab. virgo form. nov. The butterfly appears in one brood and is common in swampy places. The larva feeds on cress (Draba, Descurainia sophia, Arabis hirsuta, Cardamine impatiens, and Rorippa). 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 Yellow Tip sighting in Hangzhou on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 126th most-seen of the 172 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.
April
In that month about 20% of wildlife watchers report a Yellow Tip in Hangzhou on a given day, against under 5% in May to February, the lowest months.
Among the best
Of the 7 cities where we can rate Yellow Tip sightings, Hangzhou ranks 5th at about 10%, level with the leaders once rounded. The best odds are in Wuhan (China, about 10%), Suzhou (China, about 10%) and Shanghai (China, about 10%).
Same family: Pieridae
The closest relatives of the Yellow Tip that you can see in Hangzhou (family Pieridae, Whites, Yellows, and Sulphurs) are Small White (about 10%) and Colias poliographus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow Tip is recorded against all the insects logged in Hangzhou (6 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.
