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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L1124	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	Pipistrellus hesperus	Pipistrellus hesperus	Pipistrellus hesperus	Pipistrellus hesperus	Pipistrellus hesperus	Pipistrellus hesperus	Parastrellus hesperus	Parastrellus hesperus	Parastrellus hesperus	Parastrellus hesperus	Parastrellus hesperus	Parastrellus hesperus	Parastrellus hesperus	Parastrellus hesperus	Parastrellus hesperus		[MSW2] Subgenus Hypsugo.; [MSW3] Subgenus Pipistrellus. See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrellus pending further study.; [HMW] Scotophilus hesperus H. Allen, 1864 , Old Fort Yuma, Imperial County, California , USA . Has variously been placed in Scotophilus, Vesperugo , Pipistrellus , and Hypsugo , but morphological, karyological, and molecular data support its separation in a monotypic genus, Parastrellus . Monotypic.; [batnames2022] See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrellus pending further study. Formerly called the "Western Pipistrelle".; [MDD2022] moved from Pipistrellus to the recently described Parastrellus; [batnames2023] See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrellus pending further study. Formerly called the "Western Pipistrelle".; [MDD2023] moved from Pipistrellus to the recently described Parastrellus; [MDD2025_2.0] moved from Pipistrellus to the recently described Parastrellus; [batnames2025_1.7] See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrelluspending further study. Formerly called the "Western Pipistrelle".; [MDD2025_2.2] moved from Pipistrellus to the recently described Parastrellus		(Canyon bat)				apus, australis, maximus, merriami, oklahomae, potosinus, santarosae.	hesperus, maximus	hesperus, maximus	apus, australis, merriami; maximus - oklahomae, potosinus, santarosae			hesperus, maximus	hesperus - apus, australis, merriami; maximus - oklahomae, potosinus, santarosae	hesperus, merriami, australis, apus, maximus, santarosae, potosinus, oklahomae		hesperus, maximus	hesperus - apus, australis, merriami; maximus - oklahomae, potosinus, santarosae	hesperus, merriami, australis, apus, maximus, santarosae, potosinus, oklahomae	hesperus, merriami, australis, apus, maximus, santarosae, potosinus, oklahomae	hesperus 	hesperus - apus, australis, merriami; maximus - oklahomae, potosinus, santarosae	hesperus (H. Allen, 1864)|merriami (Dobson, 1886)|australis (G. S. Miller, 1897)|apus (D. G. Elliot, 1904)|maximus (Hatfield, 1936)|santarosae (Hatfield, 1936)|potosinus (Dalquest, 1951)|oklahomae (Glass & Morse, 1959)		Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp.	Western pipistrelle	Washington – C Mexico	Honacki, J.H., Kinman, K.E. and Koeppl, J.W. 1982. Mammal Species of the World: A Taxonomic and Geographic Reference. Allen Press, Lawrence, 694 pp.	Pipistrellus hesperus	U.S.A., California, Imperial Co., Old Fort Yuma.	H. Allen	1864	Smithson. Misc. Coll., 7:43.	Distribution: Ranging from northwestern United States to central Mexico.		Corbet, G.B. and Hill, J.E. 1991. A World List of Mammalian Species. Third edition. Oxford University Press, London, 243 pp. ISBN 0-19-854017-5	Western pipistrelle (Canyon bat)	Washington – C Mexico	Koopman, K.F. 1993. Order Chiroptera. Pp. 137–242 in Wilson, D.E. and Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference. Second edition. Smithsonian Institution Press, Washington, 1206 pp.	H. Allen	1864	Smithson. Misc. Coll., 7:43.	Subgenus Hypsugo.	Washington to SW Oklahoma (USA), and Baja California, south to Hidalgo and Guerrero (Mexico).	USA, California, Imperial Co., Old Fort Yuma.		H. ALLEN	1864	Size relatively small (forearm length, 27-34 mm). Inner upper incisor faintly bicuspid. Rostrum fairly short and relatively broad. Forehead almost flat.	Distribution: Ranging from northwestern United States to central Mexico.	Two subspecies are currently recognized:	P. h. hesperus (chiefly west of the continental divide), P. h. maximus (chiefly east of the continental divide).	113	species	P. hesperus	H. ALLEN	1864	Pipistrellus	subgenus	Pipistrellus hesperus				Size relatively small (forearm length, 27-34 mm). Inner upper incisor faintly bicuspid. Rostrum fairly short and relatively broad. Forehead almost flat.	Two subspecies are currently recognized:		18. P. hesperus (H. ALLEN 1864) [hesperus group].	18	_P. h. hesperus_ (Allen, 1864) (synonyms: _apus_ (Elliot, 1904), _australis_ (Miller, 1897), _merriami_ (Dobson, 1886)); _P. h. maximus_ (Hatfield, 1936) (synonyms: _oklahomae_ (Glass & Morse, 1959), _potosinus_ (Dalquest, 1951), _santarosae_ (Hatfield, 1936))			Don E. Wilson & DeeAnn M. Reeder (editors). 2005. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), Johns Hopkins University Press, 2,142 pp. (Available from Johns Hopkins University Press, 1-800-537-5487 or (410) 516-6900, or at http://www.press.jhu.edu).	CHIROPTERA	Vespertilionidae	Vespertilioninae	Pipistrellini	Pipistrellus hesperus	Pipistrellus	Pipistrellus	hesperus	H. Allen		1864		Smithson. Misc. Coll.	7		43		Western Pipistrelle	USA, California, Imperial Co., Old Fort Yuma.	Washington to SW Oklahoma (USA), and Baja California, south to Hidalgo and Guerrero (Mexico).	IUCN 2003 and IUCN/SSC Action Plan (2001) – Lower Risk (lc).	apus Elliot, 1904; australis Miller, 1897; merriami Dobson, 1866; maximus Hatfield, 1936; oklahomae Glass and Morse, 1959; potosinus Dalquest, 1951; santarosae Hatfield, 1936.	Subgenus Pipistrellus. See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrellus pending further study.	4C3D87E8FF9A6A25FF7797AA181DBACF	Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions	978-84-16728-19-0	hbmw_9_Vespertilionidae_716.pdf.imf	hash://md5/b004ff90fffb6a44fffc96591e00bb32	855	zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/4C/3D/87/4C3D87E8FF9A6A25FF7797AA181DBACF.xml	Parastrellus hesperus	Vespertilionidae	Parastrellus	hesperus		1864	Parastrelle de |' Ouest @fr | \Westliche Amerikanische Zwergfledermaus @de | Parastrelodel oeste @es | \\Western Pipistrelle @en	Scotophilus hesperus H. Allen, 1864 , Old Fort Yuma, Imperial County, California , USA . Has variously been placed in Scotophilus, Vesperugo , Pipistrellus , and Hypsugo , but morphological, karyological, and molecular data support its separation in a monotypic genus, Parastrellus . Monotypic.	W & SW USA (SE Washington S to SW Oklahoma and W Texas ) and Mexico as far S as Guerrero .	Head-body c.34-53 mm, tail 25-36 mm, ear 11-14 mm, hindfoot 7-10 mm, forearm 26-33 mm; weight 2-6 g. Females larger than males. Fur is silky and dorsal hairs are bicolored, with blackish or dark brown bases, and tips ranging from smoky gray brown to yellowish brown or pale orange yellow; ventral hairs are bicolored, with blackish bases and tips ranging from pale yellowish to whitish, with a strong contrast between bases and tips. Ears are short; tragus is blunt, slightly curved, and usually one-half of ear height. Hindfoot is short, less than one-half tibia length; calcar is keeled; wing membrane attaches at base of toes. Dorsum of uropatagium is thinly furred on basal one-third; membranes are blackish, contrasting strongly with pelage. Baculum is inflated dorsally, forming a broad, roof-like support for extensive distal enlargement of glans penis (with trilobate globular bodies). Skull is small (greatest skull length 11-3-13-1 mm) and nearly straight in dorsal profile; braincase low, but broad and elongated; postorbital region wide; supraorbital area slightly widened; rostrum short, not conspicuously expanded, and with shallow median depression where rostrum merges with frontals;slight lateral-rostral depressions just above anteorbital foramina; premaxillae are not shortened; cranial profile almost straight, slightly depressed above anterior root of zygomata; zygomata slender,a little widened anteriorly, and lacking anyjugal eminence; interdental palate is about as wide as long; maxillary tooth rows convergent; short bony post-dental palate; basioccipital is narrow; cochlear bullae are inflated. Dental formulais12/3, C 1/1, P 2/2, M 5/35 (x2) = 34. Chromosomal complement has 2n = 28 and FN = 46, with nine medium-sized to large metacentric and submetacentric pairs of chromosomes, one small submetacentric, three small acrocentric, a medium-sized submetacentric X-chromosome, and a small acrocentric Y-chromosome.	Mainly associated with rocky outcrops near permanent water in lowlands, but also found at altitudes up to 2800 m . Occurs in Xeric vegetation (e.g. desert, grassland, shrub-steppe) and woodland adjacentto arid areas (e.g. coniferous, oak, juniper, and riparian forests).	Forages at 2-15 m aboveground or over water, where it captures small insects in flight. Diet includes Hemiptera , Hymenoptera , Lepidoptera , Diptera , Coleoptera , Homoptera , Tricoptera , and Plecoptera ; soft-bodied insects are preferred.	Copulation and insemination occur for first time in autumn; sperm may be retained within female through winter; males continue to produce sperm during winter, and winter copulations may be essential to guarantee spring fertilization. Pregnant females are found in May and June; gestation lasts ¢.40 days. Young are born in June and July, usually two but sometimes only one. Maternity colonies may be established in buildings or rock crevices. Weaning occurs at around one month of age, when young are difficult to distinguish from adults.	Foraging activity begins very early in evening, making this species one of the most diurnal bats of North America. It is most often netted during first hour or two after sunset and then not again until near dawn. Occasionally, individual bats fly around midday, when they seek water to alleviate stress caused by the arid environment. Diurnal roosts include crevices of canyon walls,cliffs, under rocks, caves, human buildings, and dense growths of sedge. In winter, these bats hibernate in mine tunnels and caves.	The Canyon Bat is not a strong flier and, predictably, is not migratory. It has a slow, fluttery flight, which restricts it to small foraging circuits. It is only modestly colonial, and solitary individuals are typical. Maternity colonies are small, not exceeding twelve individuals, including adult females and juveniles.	Classified as Least Concern on The IUCN Red List, because of its wide distribution, occurrence in a number of protected areas, and presumed large population; it is unlikely to be declining.	Allen (1864) | Baker & Patton (1967) | Findley & Traut (1970) | Hall (1981) | Hatfield (1936) | Hill & Harrison (1987) | Hoofer et al. (2006) | Schmidly & Bradley (2016) | Simmons (2005) | Solari (2019e) | Wilson & Ruff (1999)	https://zenodo.org/record/6398236/files/figure.png	202. Canyon Bat Parastrellus hesperus French: Parastrelle de |' Ouest / German: \Westliche Amerikanische Zwergfledermaus / Spanish: Parastrelo del oeste Other common names: \\Western Pipistrelle Taxonomy. Scotophilus hesperus H. Allen, 1864 , Old Fort Yuma, Imperial County, California , USA . Has variously been placed in Scotophilus, Vesperugo , Pipistrellus , and Hypsugo , but morphological, karyological, and molecular data support its separation in a monotypic genus, Parastrellus . Monotypic. Distribution. W & SW USA (SE Washington S to SW Oklahoma and W Texas ) and Mexico as far S as Guerrero . Descriptive notes. Head-body c.34-53 mm, tail 25-36 mm, ear 11-14 mm, hindfoot 7-10 mm, forearm 26-33 mm; weight 2-6 g. Females larger than males. Fur is silky and dorsal hairs are bicolored, with blackish or dark brown bases, and tips ranging from smoky gray brown to yellowish brown or pale orange yellow; ventral hairs are bicolored, with blackish bases and tips ranging from pale yellowish to whitish, with a strong contrast between bases and tips. Ears are short; tragus is blunt, slightly curved, and usually one-half of ear height. Hindfoot is short, less than one-half tibia length; calcar is keeled; wing membrane attaches at base of toes. Dorsum of uropatagium is thinly furred on basal one-third; membranes are blackish, contrasting strongly with pelage. Baculum is inflated dorsally, forming a broad, roof-like support for extensive distal enlargement of glans penis (with trilobate globular bodies). Skull is small (greatest skull length 11-3-13-1 mm) and nearly straight in dorsal profile; braincase low, but broad and elongated; postorbital region wide; supraorbital area slightly widened; rostrum short, not conspicuously expanded, and with shallow median depression where rostrum merges with frontals;slight lateral-rostral depressions just above anteorbital foramina; premaxillae are not shortened; cranial profile almost straight, slightly depressed above anterior root of zygomata; zygomata slender,a little widened anteriorly, and lacking anyjugal eminence; interdental palate is about as wide as long; maxillary tooth rows convergent; short bony post-dental palate; basioccipital is narrow; cochlear bullae are inflated. Dental formulais12/3, C 1/1, P 2/2, M 5/35 (x2) = 34. Chromosomal complement has 2n = 28 and FN = 46, with nine medium-sized to large metacentric and submetacentric pairs of chromosomes, one small submetacentric, three small acrocentric, a medium-sized submetacentric X-chromosome, and a small acrocentric Y-chromosome. Habitat. Mainly associated with rocky outcrops near permanent water in lowlands, but also found at altitudes up to 2800 m . Occurs in Xeric vegetation (e.g. desert, grassland, shrub-steppe) and woodland adjacentto arid areas (e.g. coniferous, oak, juniper, and riparian forests). Food and Feeding. Forages at 2-15 m aboveground or over water, where it captures small insects in flight. Diet includes Hemiptera , Hymenoptera , Lepidoptera , Diptera , Coleoptera , Homoptera , Tricoptera , and Plecoptera ; soft-bodied insects are preferred. Breeding. Copulation and insemination occur for first time in autumn; sperm may be retained within female through winter; males continue to produce sperm during winter, and winter copulations may be essential to guarantee spring fertilization. Pregnant females are found in May and June; gestation lasts ¢.40 days. Young are born in June and July, usually two but sometimes only one. Maternity colonies may be established in buildings or rock crevices. Weaning occurs at around one month of age, when young are difficult to distinguish from adults. Activity patterns. Foraging activity begins very early in evening, making this species one of the most diurnal bats of North America. It is most often netted during first hour or two after sunset and then not again until near dawn. Occasionally, individual bats fly around midday, when they seek water to alleviate stress caused by the arid environment. Diurnal roosts include crevices of canyon walls,cliffs, under rocks, caves, human buildings, and dense growths of sedge. In winter, these bats hibernate in mine tunnels and caves. Movements, Home range and Social organization. The Canyon Bat is not a strong flier and, predictably, is not migratory. It has a slow, fluttery flight, which restricts it to small foraging circuits. It is only modestly colonial, and solitary individuals are typical. Maternity colonies are small, not exceeding twelve individuals, including adult females and juveniles. Status and Conservation. Classified as Least Concern on The IUCN Red List, because of its wide distribution, occurrence in a number of protected areas, and presumed large population; it is unlikely to be declining. Bibliography. Allen (1864), Baker & Patton (1967), Findley & Traut (1970), Hall (1981), Hatfield (1936), Hill & Harrison (1987), Hoofer et al. (2006), Schmidly & Bradley (2016), Simmons (2005), Solari (2019e), Wilson & Ruff (1999).	Simmons, N.B. and A.L. Cirranello. 2022B. Bat Species of the World: A taxonomic and geographic database. Accessed on 10/11/2022.	Vespertilionidae	Parastrellus hesperus	Parastrellus		hesperus	H. Allen	1864	1	Smithson. Misc. Coll.	7:43	Canyon Bat	 apus Elliot, 1904; australis Miller, 1897; merriami Dobson, 1866; <b>maximus</b> Hatfield, 1936; oklahomae Glass and Morse, 1959; potosinus Dalquest, 1951; santarosae Hatfield, 1936.	USA, California, Imperial Co., Old Fort Yuma.	Washington to SW Oklahoma (USA), and Baja California, south to Hidalgo and Guerrero (Mexico).	Not listed.	Least Concern	See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrellus pending further study. Formerly called the "Western Pipistrelle".	Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023	Parastrellus hesperus	23	Canyon Bat	Western Pipistrelle	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	VESPERTILIONIDAE	VESPERTILIONINAE	PERIMYOTINI	Parastrellus	NA	hesperus	H. Allen	1864	1	Scotophilus_hesperus	Allen, H. (1864). Monograph of the Bats of North America. Smithsonian Miscellaneous Collections, 7(1), 43.	https://www.biodiversitylibrary.org/page/8817039#page/83/mode/1up	USNM 5406/37406 [lectotype]		Old Fort Yuma, Imperial County, California, USA.			hesperus (H. Allen, 1864)|merriami (Dobson, 1866)|australis (G. S. Miller, 1897)|apus (D. G. Elliot, 1904)|maximus (Hatfield, 1936)|santarosae (Hatfield, 1936)|potosinus Dalquest, 1951|oklahomae (Glass & Morse, 1959)	moved from Pipistrellus to the recently described Parastrellus	Hoofer, S. R., Van Den Bussche, R. A., & Horáček, I. (2006). Generic status of the American pipistrelles (Vespertilionidae) with description of a new genus. Journal of mammalogy, 87(5), 981-992.	United States|Mexico	North America	Nearctic	LC	0	0	0	Parastrellus_hesperus	0	oldname match	Pipistrellus_hesperus	0	IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022].	17341	Parastrellus hesperus	ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	VESPERTILIONIDAE	Parastrellus	hesperus	(H. Allen, 1864)		20000000	Parastrellus hesperus	Least Concern		2019	2018-08-10 00:00:00 UTC	3.1	English	This species is confirmed as Least Concern in because of its wide distribution, presumed large population, occurrence in a number of protected areas and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.	Western Pipistrelles inhabit a variety of habitats, ranging from rocky canyons, cliffs, and outcroppings to creosote bush flats. They are the most abundant of North American bats that are found in deserts, but are found at higher elevations in arid brush lands, grasslands, and even some forests. Western Pipistrelles spend their days roosting in rock crevices, beneath rocks, in burrows, mines, and buildings (Wilson and Ruff 1999). It has been suggested that Western Pipistrelles use burrows made by kangaroo rats (Dipodomys spp.) and other rodents (Barbour and Davis 1969). This species spends winter hibernating in mines, caves, and rock crevices. Water is a very important resource determining the distribution of this bat. Because of the high proportion of protein in their diet, the arid environment that they inhabit, and the subsequent high levels of evaporate water loss, Western Pipistrelles generally roost close to a water source. Availability of maternity roost sites is an extremely important factor in successful bat reproduction (Cockrum and Cross 1964). However, this species is only modestly colonial, and solitary individuals are typical (Wilson and Ruff 1999). Western Pipistrelles begin their foraging flights very early in the evening hours, making them one of the most diurnal of North American bats. They may also be encountered later in the evening (4 hrs after sunset), or closer to the morning. Occasionally, individual bats have been observed on wing during mid-day, during which time they seek out water to alleviate stress caused by the arid environment they inhabit. Because these bats fly slowly, they are restricted to small foraging circuits; it is also nonmigratory. They have a very slow, fluttery flight that can often be observed along cliff faces, among pinyon trees, or other desert shrubs. They are often mistaken for large moths (Peters 2003).	Since reopening abandoned or inactive mines can negatively affect bat colonies, it has been recommended that multi-seasonal surveys be conducted prior to allowing any renewed mining. Human disturbance can be extremely detrimental to bat colonies, especially to non-volant young and hibernating adults, depending on the season and severity of the disturbance. Mines that are in close proximity to roads, towns, hiking trails or camp grounds are more susceptible to disturbance then those in remote areas with difficult access. There is a need for greater assurance that roosts will remain undisturbed and that future (potential) roost sites will be left when managing for bats in pinyon-juniper habitat. Ideally, management should aim to sustain adequate food, water, and roost sites in close proximity to one another (Klingel 2000).	These are abundant and most common at low elevations in desert scrub and arid grassland habitats. It is one of the most common bats seen over waterholes and streams in arid habitats. In 1890, C. Hart Merriam wrote that this species was found in swarms in the Grand Canyon of the Colorado River (Arizona), an observation that attests to their abundance and prominence in canyon environments (Wilson and Ruff 1999).	Stable	This species occurs from Washington to Southwestern Oklahoma (USA), and Baja California, south to Hidalgo and Guerrero (Mexico) (Simmons 2005).		Terrestrial	Protection of this species requires to avoid habitat loss and human disturbance. Destruction of rocky areas due to renewed mining or other development activities can kill roosting bats and remove roosting habitat.	Nearctic		FALSE	FALSE	Global	Simmons, N. B., & Cirranello, A. L. (2023). Batnames.org Species List Version 1.4 (1.4). Zenodo. https://doi.org/10.5281/zenodo.8136157 	Vespertilionidae	Parastrellus		hesperus	H. Allen	1864	1	Smithson. Misc. Coll.	7:43	Canyon Bat	 apus Elliot, 1904; australis Miller, 1897; merriami Dobson, 1866; <b>maximus</b> Hatfield, 1936; oklahomae Glass and Morse, 1959; potosinus Dalquest, 1951; santarosae Hatfield, 1936.	USA, California, Imperial Co., Old Fort Yuma.	Washington to SW Oklahoma (USA), and Baja California, south to Hidalgo and Guerrero (Mexico).	Not listed.	Least Concern	See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrellus pending further study. Formerly called the "Western Pipistrelle".	Parastrellus hesperus	1005595	23	Canyon Bat	Western Pipistrelle	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	Vespertilionidae	VESPERTILIONINAE	PERIMYOTINI	Parastrellus	NA	hesperus	H. Allen	1864	1	Scotophilus_hesperus	Allen, H. (1864). Monograph of the Bats of North America. Smithsonian Miscellaneous Collections, 7(1), 43.	https://www.biodiversitylibrary.org/page/8817039#page/83/mode/1up	USNM 5406/37406 [lectotype]		Old Fort Yuma, Imperial County, California, USA.			hesperus (H. Allen, 1864)|merriami (Dobson, 1866)|australis (G. S. Miller, 1897)|apus (D. G. Elliot, 1904)|maximus (Hatfield, 1936)|santarosae (Hatfield, 1936)|potosinus Dalquest, 1951|oklahomae (Glass & Morse, 1959)	moved from Pipistrellus to the recently described Parastrellus	Hoofer, S. R., Van Den Bussche, R. A., & Horáček, I. (2006). Generic status of the American pipistrelles (Vespertilionidae) with description of a new genus. Journal of mammalogy, 87(5), 981-992.			USA(WA,OR,ID,CA,NV,UT,CO,AZ,NM,TX,OK)	United States|Mexico	North America	Nearctic	LC	0	0	0	Parastrellus_hesperus	0	oldname match	Pipistrellus_hesperus	0	Burgin, C. J., Zijlstra, J. S., Becker, M. A., Handika, H., Alston, J. M., Widness, J., Liphardt, S., Huckaby, D. G., and Upham, N. S. (2025). How many mammal species are there now? Updates and trends in taxonomic, nomenclatural, and geographic knowledge. Journal of Mammalogy in revision: TBD. https://doi.org/10.1101/2025.02.27.640393	Parastrellus_hesperus	1005595	23	Canyon Bat	Western Pipistrelle	Theria	Placentalia	Boreoeutheria	Laurasiatheria	Chiroptera	Yangochiroptera	NA	NA	Vespertilionoidea	Vespertilionidae	Vespertilioninae	incertae sedis	Parastrellus	NA	hesperus	H. Allen	1	Scotophilus hesperus	Allen, H. 1864-06. Monograph of the bats of North America. Smithsonian Miscellaneous Collections 7(1):1-85.	https://www.biodiversitylibrary.org/page/8817105	USNM:MAMM:5406 (= USNM:MAMM:A37406)	lectotype	http://n2t.net/ark:/65665/3d1882ab5-9c4f-46e7-a713-81a97792afcd	Old Fort Yuma, Imperial County, California, USA.			moved from Pipistrellus to the recently described Parastrellus	Hoofer, S. R., Van Den Bussche, R. A., & Horáček, I. (2006). Generic status of the American pipistrelles (Vespertilionidae) with description of a new genus. Journal of mammalogy, 87(5), 981-992.			USA(WA,OR,ID,CA,NV,UT,CO,AZ,NM,TX,OK)	United States|Mexico	North America	Nearctic	LC	0	0	0	Parastrellus_hesperus	0	oldname match	Pipistrellus_hesperus	0	Simmons, N. B., & Cirranello, A. L. (2025). Batnames.org Species List Version 1.7 (1.7). Zenodo. https://doi.org/10.5281/zenodo.14796586	Vespertilionidae	Parastrellus		hesperus	H. Allen	1864	1	Smithson. Misc. Coll.	7:43	Canyon Bat	apus Elliot, 1904; australis Miller, 1897; merriami Dobson, 1866; maximus Hatfield, 1936; oklahomae Glass and Morse, 1959; potosinus Dalquest, 1951; santarosae Hatfield, 1936.	USA, California, Imperial Co., Old Fort Yuma.	Washington to SW Oklahoma (USA), and Baja California, south to Hidalgo and Guerrero (Mexico).	<a href='https://cites.org/eng/app/appendices.php' target='_blank'>Not Listed</a>	<a href='https://www.iucnredlist.org/species/17341/22129352/' target='_blank'>Least Concern</a>	See Hall (1981). Placed in Hypsugo by Koopman (1993), but here retained in Pipistrelluspending further study. Formerly called the "Western Pipistrelle".		Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505	NA	Pipistrellus hesperus; Parastrellus hesperus; Parastrellus hesperus; Parastrellus hesperus; Parastrellus hesperus; Parastrellus hesperus; hesperus; maximus; apus; australis; merriami; maximus - oklahomae; potosinus; santarosae; maximus; apus; australis; merriami; maximus - oklahomae; potosinus; santarosae; hesperus; merriami; australis; apus; maximus; santarosae; potosinus; oklahomae; Parastrelle de; Ouest; \Westliche Amerikanische Zwergfledermaus; Parastrelodel oeste; \\Western Pipistrelle; Canyon Bat; Western Pipistrelle; Western Pipistrelle; Canyon Bat; P. hesperus