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An illustration based on the real animal.
A little discovery to share.
Japanese house bats can hover in the air.
THE REAL WORLD
The real Japanese house bat
- Scientific name
- Pipistrellus abramus
- Japanese name
- アブラコウモリ（イエコウモリ）
- Group
- Land mammals
- Class
- Mammalia
- Order
- Chiroptera
- Family
- Vespertilionidae
- Genus
- Pipistrellus
It is also known by another Japanese name, イエコウモリ (house bat).
This bat lives all over Japan and rests in places such as under the eaves of houses during the day.
It sends out ultrasound from its mouth and listens to the echoes, so it can fly freely even in the dark.
After sunset it flies out over riverbanks and rice fields to catch flying insects such as mosquitoes and flies.
How the Japanese house bat lives
During hibernation, they lower their body temperature and hardly move except to drink water occasionally. In spring, they wake from hibernation and become active. Females give birth in early summer. Males and females mate in autumn.
多摩動物公園Basic data
- Size
- Head and body length: 41–60 mm
- Weight
- 5–10 g
- Lifespan
- females average 5 years, males average 3 years
- Diet
- Flying insects such as mosquitoes, flies, stink bugs, and moths
- Range
- Russia, China, Taiwan, South Korea, and elsewhere
Where the Japanese house bat has been recorded
Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF
Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.
Names around the world
- 简体中文
- 东亚家蝠
- 繁體中文
- 東亞伏翼
- 한국어
- 집박쥐
- Español
- Murciélago casero japonés
- Deutsch
- Japanische Zwergfledermaus
- Italiano
- Pipistrello giapponese
- Русский
- Восточный нетопырь
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 多摩動物公園 — アブラコウモリChecked: 2026-11-03
We check each fact against its source. The illustrations simplify how the real animal looks.
The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.
The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.
This page was translated from the original Japanese with the help of AI.
Report a mistakeWhen you meet the Japanese house bat, look for this
- Look for the long fingers other than the thumb, and the thin membrane between them.
- Look, too, for the membrane linking the ankles to the tip of the tail.
Animals do different things from day to day, so you may not always see this.
多摩動物公園EXHIBIT INFORMATION
Places that keep or show the Japanese house bat
Zoos, aquariums and other places whose official websites say they keep or show this animal.
Kanto
Displays can change with the animals’ health and the seasons. Check each facility’s official website before you go.
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