Little Stag Beetle

Little Stag Beetle

Dorcus rectus

Daily sighting probability ~20% · Possible
at Sapporo

In 3 days ~40% in a week ~70%

11 Verified sightings at Sapporo
9 In 1 park From 2019 to 2026
June Best month
☀️🌙 Day & Night When it's spotted

About the Little Stag Beetle

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 →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Nikko National Park 🇯🇵 Japan
~20%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Nagoya 🇯🇵 Japan
~20%
2 Busan 🇰🇷 South Korea
~20%
3 Sapporo 🇯🇵 Japan
~20%
4 Sendai 🇯🇵 Japan
~10%
5 Tokyo 🇯🇵 Japan
~10%
6 Osaka 🇯🇵 Japan
~10%
7 Seoul 🇰🇷 South Korea
~10%

Before you go

What are the chances of seeing a Little Stag Beetle in Sapporo?

Possible

About 20% of wildlife watchers report a Little Stag Beetle sighting in Sapporo on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 14th 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.

When is the best time to see a Little Stag Beetle in Sapporo?

June

In that month about 30% of wildlife watchers report a Little Stag Beetle in Sapporo on a given day, against under 5% in October to May, the lowest months.

What time of day is best to see a Little Stag Beetle?

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.

Is Sapporo the best place to see a Little Stag Beetle?

Among the best

Of the 7 cities where we can rate Little Stag Beetle sightings, Sapporo ranks 3rd at about 20%, level with the leaders once rounded. The best odds are in Nagoya (Japan, about 20%) and Busan (South Korea, about 20%).

Which relatives of the Little Stag Beetle live in Sapporo?

Same genus: Dorcus

The closest relatives of the Little Stag Beetle that you can see in Sapporo (genus Dorcus, Stag Beetles) are Dorcus rubrofemoratus (about 10%) and Dorcus striatipennis (about 10%), with each one's daily chance of a sighting.

Where does the Little Stag Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Little Stag Beetle is recorded against all the insects logged in Sapporo (11 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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