Ceriagrion melanurum
In 3 days ~10% in a week ~20%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Ceriagrion melanurum sighting in Tokyo on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 416th most-seen of the 1013 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July and August
In those months about 10% of wildlife watchers report a Ceriagrion melanurum in Tokyo on a given day, against under 5% in September to June, the lowest months.
3rd of 3
Of the 3 cities where we can rate Ceriagrion melanurum sightings, Tokyo ranks 3rd at under 5%. The best odds are in Osaka (Japan, about 10%) and Seoul (South Korea, under 5%).
Same family: Coenagrionidae
The closest relatives of the Ceriagrion melanurum that you can see in Tokyo (family Coenagrionidae, Narrow-winged Damselflies) are Common Bluetail (about 10%), Ischnura asiatica (about 10%) and Aciagrion migratum (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ceriagrion melanurum is recorded against all the insects logged in Tokyo (23 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.
