Dorcus rectus
In 3 days ~50% in a week ~80%
Dorcus rectus, the little stag beetle, is a species of beetles in the family Lucanidae. It can be found in China(Liaoning), Korea, Japan, Russia. These beetles have a distinctive red shell that separates them from Dorcus curvidens. Males of this species have been observed to have mandible trimorphism, a characteristic that has only been described in two species of Lucanidae—with the other one being Odontolabis cuvera—"and a small number of other invertebrates" as of 2017. The mandibles are used by males as weapons. 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 a Little Stag Beetle sighting in Nikko National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 22nd most-seen of the 86 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.
April and June–July
In those months about 30% of wildlife watchers report a Little Stag Beetle in Nikko National Park on a given day, against under 5% in March, May and September–November, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Little Stag Beetle sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Nikko National Park, in our data
Nikko National Park is the only park on Wallace's Line with enough records to rate Little Stag Beetle sightings: about 20% of wildlife watchers there report one on a given day.
Same genus: Dorcus
The closest relatives of the Little Stag Beetle that you can see in Nikko National Park (genus Dorcus, Stag Beetles) are Dorcus rubrofemoratus (about 20%) and Dorcus striatipennis (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Little Stag Beetle is recorded against all the insects logged in Nikko National Park (9 verified sightings from 2019 to 2026), 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.
