Sympetrum frequens
In 3 days ~40% in a week ~70%
Sympetrum frequens, the Autumn darter (アキアカネ, akiakane), is a species of dragonfly endemic to Japan. It lives near grasslands and can grow up to 40 mm in length. After emerging, these dragonflies migrate to high mountains where they feed until descending to breeding pools (often temporary or artificial, including rice fields) at lower levels.
Akatombo—beloved Japanese song about this dragonfly ふしぎがわかる しぜん図鑑 こんちゅう (in Japanese). Tokyo, Japan: Froebel-Kan CO., LTD. 1999. p. 36. ISBN 4-577-00033-4. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report an Autumn Darter sighting in Sapporo on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 9th most-seen of the 44 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
September
In that month about 50% of wildlife watchers report an Autumn Darter in Sapporo on a given day, against under 5% in November to July, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Autumn Darter sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 cities where we can rate Autumn Darter sightings, Sapporo has the highest daily chance: about 20%. Next come Nagoya (Japan, about 10%) and Sendai (Japan, about 10%).
Same genus: Sympetrum
The closest relatives of the Autumn Darter that you can see in Sapporo (genus Sympetrum, Meadowhawks) are Sympetrum infuscatum (about 20%), Sympetrum darwinianum (about 10%) and Four-Tipped Darter (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Autumn Darter is recorded against all the insects logged in Sapporo (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.
