Lesser mouse-eared bat
Myotis blythii (Tomes, 1857)
The lesser mouse-eared bat (Myotis blythii) is a species in the family Vespertilionidae, order Chiroptera. Recorded adults weigh 21.2 g to 24.7 g and live up to 22 years. Its IUCN Red List status is Least Concern.

Quick facts about the lesser mouse-eared bat
- Weight
- 21.2 g – 24.7 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 22 yearssrc for Lifespan
- Diet
- Invertivoresrc for Diet
- Longest recorded lifespan
- 33 years
- Main food
- Not recorded
- Habitat
- grasslandsrc for Habitat
- Gestation
- 69 dayssrc for Gestation
- Young per litter or clutch
- 1src for Young per litter or clutch
- Age at maturity
- 13.8 months – 16.5 monthssrc for Age at maturity
- Litters or clutches a year
- 1src for Litters or clutches a year
- Active
- At night (nocturnal)src for Active
- Lifestyle
- Aerialsrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the lesser mouse-eared bat live?
Not recorded
What is the lesser mouse-eared bat?
The lesser mouse-eared bat or lesser mouse-eared myotis (Myotis blythii) is a species of insectivorous bat in the family Vespertilionidae. This species has a wide distribution from the Iberian Peninsula to China.
From the Wikipedia article “Lesser mouse-eared bat” (en.wikipedia.org/w/index.php?title=Lesser_mouse-eared_bat&oldid=1374332622), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the lesser mouse-eared bat endangered?
The lesser mouse-eared bat is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.
How is the lesser mouse-eared bat classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderChiroptera
- familyVespertilionidae
- genusMyotis
- SpeciesMyotis blythii (Tomes, 1857)
Synonyms Myotis ancilla, Myotis blythii ancilla, Myotis blythii blythii, Myotis blythii lesviacus, Myotis blythii omari, Myotis blythii oxygnathus, Myotis dobsoni, Myotis lesviacus, Myotis murinoides, Myotis myosotis ancilla, Myotis myotis omari, Myotis omari, Myotis oxygnathus, Myotis risorius, Vespertilio blythii, Vespertilio oxygnathus
Other names and names in other languages (33)
- Lesser mouse-eared myotisEnglish
- Lesser mouse-eared myotisEnglish
- Lesser mouse-eared myotisEnglish
- Lesser myotisEnglish
- خفاش فأري الأذنين الصغيرArabic
- خفاش ذو أذن الفأر الصغيرArabic
- Ratpenat de musell agutCatalan
- netopýr východníCzech
- Kleines MausohrGerman
- ΜικρομυωτίδαGreek
- Murciélago Ratonero MedianoSpanish
- hiirenkorvasiippaFinnish
- Murin de BlythFrench
- Petit MurinFrench
- נישפון מצויHebrew
- hegyesorrú denevérHungarian
- Vespertilio di BlythItalian
- ブライスホオヒゲコウモリJapanese
- Үшкір құлақты жарқанатKazakh
- 작은생쥐귀박쥐Korean
- SmåmusøreNorwegian Bokmål
- Kleine Vale VleermuisDutch
- Nocek wschodniPolish
- Morcego-rato-pequenoPortuguese
- Liliac comun micRomanian
- Остроухая ночницаRussian
- Netopier BlythovSlovak
- ostrouhi netopirSlovenian
- litet musöraSwedish
- mindre musöraSwedish
- ค้างคาวหูหนูเล็กThai
- Farekulaklı Küçük YarasaTurkish
- Нічниця гостровухаUkrainian
Catalogue of LifeWikipediaiNaturalistTAXREFWikidataIUCN Red List
Relatives of the lesser mouse-eared bat
Other species in the same genus Myotis.

Natterer's bat
Myotis nattereri
Whiskered bat
Myotis mystacinus

Daubenton's bat
Myotis daubentonii

Greater mouse-eared bat
Myotis myotis

Brandt's bat
Myotis brandtii

Geoffroy's bat
Myotis emarginatus
CompareLesser mouse-eared bat vs Natterer's batLesser mouse-eared bat vs Whiskered batLesser mouse-eared bat vs Daubenton's batLesser mouse-eared bat vs Greater mouse-eared bat
Common questions
Answered only where our data holds the answer.
How big is the lesser mouse-eared bat?
An adult lesser mouse-eared bat weighs 21.2 g – 24.7 g, according to values recorded on Wikidata.
Is the lesser mouse-eared bat endangered?
The lesser mouse-eared bat is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the lesser mouse-eared bat live?
The lesser mouse-eared bat has a recorded lifespan of 22 years.
How long is the lesser mouse-eared bat pregnant?
The recorded gestation period is 69 days.
What kind of animal is the lesser mouse-eared bat?
The lesser mouse-eared bat (Myotis blythii) belongs to the family Vespertilionidae in the order Chiroptera.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Lesser mouse-eared bat (Myotis blythii). Retrieved from https://creaturedata.com/animals/lesser-mouse-eared-bat
“Lesser mouse-eared bat (Myotis blythii).” CreatureData, 2026, https://creaturedata.com/animals/lesser-mouse-eared-bat.
@misc{lesser_mouse_eared_bat_2026,
title = {Lesser mouse-eared bat (Myotis blythii)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/lesser-mouse-eared-bat},
note = {Data as of 2026-11-11}
}