Western Pipistrelle

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Western Pipistrelle
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Vespertilionidae
Genus: Pipistrellus
Species: P. hesperus
Binomial name
Pipistrellus hesperus
H. Allen, 1864

The Western Pipistrelle (Pipistrellus hesperus) is a species of vesper bat in the Vespertilionidae family. It can be found in the following countries: Mexico and United States.

The Western Pipistrelle is characterised by its erratic and butterfly-like flight. It is known to be the smallest bat in the United States; an adult male averages a length of 66mm, the female is larger at 73mm. They weigh around 3-6 grams.

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