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73. Thomas’s Big-eared Bat

Pharotis imogene


Thomas’s big-eared bat was known only from 45 original specimens collected in 1890.

In 2012 an individual was captured during a fauna survey of the Abau District in Papua New Guinea. The species is thought to be critically endangered, as it went undetected for over 100 years, but also because it comes from a rapidly changing portion of south-eastern Papua New Guinea. Papua New Guinea is a biodiversity hotspot that is under severe threat from rapid population growth and habitat loss. This discovery highlights how little is known about the region and how important scientific surveys are.

Thomas’s big-eared bat is also known as the New Guinea big-eared bat.

  • Order: Chiroptera
  • Family: Vespertilionidae
  • Population: Unknown
  • Trend: unknown
  • Size: 47-50mm

EDGE Score

EDGE Score: 5.23 (?)
ED Score: 10.64 (?)
GE / IUCN Red List (?)
Not Evaluated Data Deficient Least Concern Near Threatened Vulnerable Endangered Critically Endangered Extinct in the Wild Extinct


Known only from Kamali Central Province, south-eastern Papua New Guinea

Habitat and Ecology

They live in lowland woodlands. Little is known of the ecology of this species. It is not known whether these bats roost in trees or caves.

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Loading species distribution map...

This wordcloud illustrates the threats facing this species. The size of each word indicates the extent of a species range that is affected by that threat (larger size means a greater area is affected). The colour of the word indicates how much that threat impacts the species (darker shades of red mean the threat is more severe).

Urban development Industrial development Logging Fire

Threat wordcloud key:

Small area affected
Large area affected
Least severe
Most severe
Severity unknown
Source: The IUCN List of Threatened Species. Version 2017.1.
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