The chocolate pipistrelle (''Hypsugo affinis'') is a species of

vesper bat Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilionid family is the most diverse and widely distributed of bat familie ...

in the family Vespertilionidae. It is found in

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is mai ...

, and

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

. Formerly classified in the genus '' Falsistrellus'', phylogenetic evidence supports it belonging to the genus ''

Hypsugo The genus ''Hypsugo'' contains many bats referred to as pipistrelles or pipistrelle bats (not to be confused with the genus ''Pipistrellus''). They belong to the family Vespertilionidae or vesper bats. They are primarily found throughout Asia, t ...

''.

Description

Their total head and body length is and their

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is . Their hair is soft, dense, and relatively long. The dorsum is dark brown, but the extreme tips of the hairs are pale gray, giving a slightly grizzled appearance. The underside is lighter in color. The membrane, ears, and naked parts of the face are uniform blackish brown.

References

Hypsugo Taxa named by George Edward Dobson Mammals described in 1871 Bats of Asia Bats of South Asia Bats of Southeast Asia Bats of India Mammals of Myanmar Mammals of China Mammals of Nepal Mammals of Sri Lanka Taxonomy articles created by Polbot {{Vespertilionidae-stub