Parnara guttatus
In 3 days ~20% in a week ~50%
Parnara guttata, the common straight swift, is a butterfly of the family Hesperiidae. It is found in the Indomalayan realm, Amur (Russian Far East), eastern China, Japan, Taiwan, the Philippines, and Korea. Its wingspan is about 40 mm.
Common straight swift larvae feed on various grasses, including rice. 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 Common Straight Swift sighting in Osaka on a given day, based on 34 verified sightings from GBIF citizen-science data. It is the 88th most-seen of the 352 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
September and October
In those months about 20% of wildlife watchers report a Common Straight Swift in Osaka on a given day, against under 5% in July and December–May, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Common Straight Swift sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
12th of 19
Of the 19 cities where we can rate Common Straight Swift sightings, Osaka ranks 12th at about 10%. The best odds are in Tokyo (Japan, about 20%), Busan (South Korea, about 20%) and Daegu (South Korea, about 20%).
GBIF citizen-science records
It is estimated from how often the Common Straight Swift is recorded against all the insects logged in Osaka (34 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.
