Dolichus halensis
In 3 days ~10% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dolichus halensis sighting in Tokyo on a given day, based on 53 verified sightings from GBIF citizen-science data. It is the 257th 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 30%, if each day is a fresh chance.
May and September–October
In those months about 10% of wildlife watchers report a Dolichus halensis in Tokyo on a given day, against under 5% in June–August and November–April, the lowest months. Those are among Tokyo's wettest months, with about 200 mm of rain a month against 75 mm in February.
5th of 7
Of the 7 cities where we can rate Dolichus halensis sightings, Tokyo ranks 5th at under 5%. The best odds are in Nagoya (Japan, about 10%), Seoul (South Korea, about 10%) and Osaka (Japan, about 10%).
Same family: Carabidae
The closest relatives of the Dolichus halensis that you can see in Tokyo (family Carabidae, Ground Beetles) are Cylindera kaleea (about 10%) and Carabus insulicola (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dolichus halensis is recorded against all the insects logged in Tokyo (53 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.
