Common Straight Swift

Common Straight Swift

Parnara guttatus

Daily sighting probability ~20% · Possible
at Busan

In 3 days ~50% in a week ~80%

12 Verified sightings at Busan
October Best month
☀️ Diurnal When it's spotted

About the Common Straight Swift

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 →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Tokyo 🇯🇵 Japan
~20%
2 Busan 🇰🇷 South Korea
~20%
3 Daegu 🇰🇷 South Korea
~20%
4 Nagoya 🇯🇵 Japan
~20%
5 Suzhou 🇨🇳 China
~20%
6 Seoul 🇰🇷 South Korea
~10%
7 Daejeon 🇰🇷 South Korea
~10%
8 Wuhan 🇨🇳 China
~10%
9 Sendai 🇯🇵 Japan
~10%
10 Nanjing 🇨🇳 China
~10%

Before you go

What are the chances of seeing a Common Straight Swift in Busan?

Possible

About 20% of wildlife watchers report a Common Straight Swift sighting in Busan on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 13th most-seen of the 31 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.

When is the best time to see a Common Straight Swift in Busan?

October

In that month about 50% of wildlife watchers report a Common Straight Swift in Busan on a given day, against under 5% in December to July, the lowest months.

What time of day is best to see a Common Straight Swift?

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.

Is Busan the best place to see a Common Straight Swift?

Among the best

Of the 19 cities where we can rate Common Straight Swift sightings, Busan ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Tokyo (Japan, about 20%).

Which relatives of the Common Straight Swift live in Busan?

Same order: Lepidoptera

The closest relatives of the Common Straight Swift that you can see in Busan (order Lepidoptera, Butterflies and Moths) are Pale Grass Blue (about 40%), Common Bluebottle (about 30%) and Asian Comma (about 20%), with each one's daily chance of a sighting.

Where does the Common Straight Swift sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Common Straight Swift is recorded against all the insects logged in Busan (12 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.

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