Cyana hamata
In 3 days ~10% in a week ~30%
Cyana hamata is a moth of the family Erebidae first described by Francis Walker in 1854. It is found in Japan, China, Taiwan, Korea and Thailand. The wingspan is 26–34 mm. Adults are on wing in February and September. 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 Cyana hamata sighting in Osaka on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 229th most-seen of the 352 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June to September
In those months about 10% of wildlife watchers report a Cyana hamata in Osaka on a given day, against under 5% in October to May, the lowest months. Those are among Osaka's wettest months, with about 180 mm of rain a month against 55 mm in January.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Cyana hamata sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 2
Of the 2 cities where we can rate Cyana hamata sightings, Osaka ranks 2nd at under 5%. The best odds are in Taipei (Taiwan, about 10%).
Same family: Erebidae
The closest relatives of the Cyana hamata that you can see in Osaka (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Japanese Nine-Spotted Moth (about 10%), Ramie Moth (about 10%) and Barsine striata (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cyana hamata is recorded against all the insects logged in Osaka (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.
