Niphonyx segregata
In 3 days ~20% in a week ~40%
Niphonyx is a monotypic genus of moths in the family Noctuidae erected by Shigero Sugi in 1982. Its only species, Niphonyx segregata, the hops angleshade, was first described by Arthur Gardiner Butler in 1878. It is endemic to eastern Asia, including the Russian Far East, the Korean Peninsula, Japan, China and Taiwan. It was introduced to the north-eastern United States in the 1990s and is found from Connecticut south to at least Delaware.
The wingspan is 25–30 mm. There are two generations per year in North America. The larvae feed on hop species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Seoul | 🇰🇷 South Korea | |
| 2 | Beijing | 🇨🇳 China | |
| 3 | Baltimore | 🇺🇸 United States | |
| 4 | Tokyo | 🇯🇵 Japan | |
| 5 | Washington | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Hops Angleshade sighting in Seoul on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 119th 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.
June to September
In those months about 10% of wildlife watchers report a Hops Angleshade in Seoul on a given day, against under 5% in October to May, the lowest months. Those are among Seoul's wettest months, with about 220 mm of rain a month against 20 mm in January.
Yes
Of the 5 cities where we can rate Hops Angleshade sightings, Seoul has the highest daily chance: about 10%. Next come Beijing (China, under 5%) and Baltimore (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Hops Angleshade is recorded against all the insects logged in Seoul (25 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.
