Lucanus maculifemoratus
In 3 days ~60% in a week ~90%
Lucanus maculifemoratus is a beetle of the family Lucanidae. This species is known as Miyama stag beetle, or deep mountain stag beetle, in Japan. These beetles have a light covering of golden hair on their back, mostly around the rear edges.
Lucanus maculifemoratus is known from northeastern Asia, including Japan, Korea, China and Russia, Taiwan. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Miyama Stag Beetle sighting in Nikko National Park on a given day, based on 14 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 12th most-seen of the 86 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
July and August
In those months about 40% of wildlife watchers report a Miyama Stag Beetle in Nikko National Park on a given day, against under 5% in March–May and September–November, the lowest months. Those are among Nikko National Park's wettest months, with about 230 mm of rain a month against 100 mm in November.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Miyama Stag Beetle sightings with a recorded time, and about 6 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 Miyama Stag Beetle sightings: about 30% of wildlife watchers there report one on a given day.
Same family: Lucanidae
The closest relatives of the Miyama Stag Beetle that you can see in Nikko National Park (family Lucanidae, Stag Beetles) are Little Stag Beetle (about 20%), 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 Miyama Stag Beetle is recorded against all the insects logged in Nikko National Park (14 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.
