Pipistrellus hesperus (Western Pipistrelle)

Counties where this species is known to occur are highlighted in blue. Click here to enlarge map. Habitat: Areas of rock crevices, mountains, and canyons. Habits: This is among the smallest of the North American bats. Western Pipistrelles roost singly or in small groups under loose rocks and in narrow crevices. They hibernate in winter. Females may form small maternity colonies, usually giving birth to twins in June. The diet consists of small, swarming insects.

Artiodactyla

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Carnivora

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Chiroptera

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Didelphimorphia

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Insectivora

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Lagomorpha

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Rodentia

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Xenarthra

Scientific Names - Common Names

For more information, view the Mammalian Species account for this species. Search the OMNH Collections for Pipistrellus hesperus.