Western pipistrelle
- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Chiroptera
- family: Vespertilionidae
- genus: Parastrellus
- species: Parastrellus hesperus
Mulegé- Rosarito
- San Felipe
Baja California- Cabo San Lucas
- Santa Rosalía
Baja California Sur- San Luis Potosí
San Luis Potosí- Ahome
Sinaloa- Puerto Peñasco
- Álamos
Sonora
Mexico
Agoura Hills- Banning
- Barstow
- Bodfish
- Borrego Springs
- Cabazon
- Castaic
- Chatsworth
- Colton
- East San Gabriel
- Escondido
- Goleta
- Indio
- Littlerock
- Lone Pine
- Los Angeles
- Mammoth Lakes
- Minkler
- Mission Canyon
- Montecito
- Needles
- Nice
- Oroville
- Palm Springs
- Pasadena
- Riverside
- Rosemead
- San Gabriel
- Shandon
- South Oroville
- Strathmore
- Thermal
- Topanga
- Ventura
- Victorville
- Weldon
- Winters
- Yosemite Valley
California- Fruita
Colorado- Las Vegas
- Lovelock
- North Las Vegas
- Pahrump
Nevada- Elephant Butte
- Grants
- Las Cruces
- Upper Fruitland
New Mexico- Fort Bliss
- Fort Davis
Texas- Richfield
- Saint George
Utah
United States