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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L487	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Plecotus phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis	Idionycteris phyllotis		[MSW2] Formerly included in Plecotus; see Williams et al. (1970). See Czaplewski (1983, Mammalian Species, 208).; [MSW3] See Czaplewski (1983).; [HMW] Corynorhinus phyllotis G. M. Allen, 1916 , “ Mexico : San Luis Potosi (probably near the city of the same name).” Previously placed in Plecotus but transferred to monotypic Idionycteris , based on morphological and chromosomal characters. Also using those characters, the genus had previously been synonymized with Euderma , but molecular reconstructions based on several mitochondrial and nuclear genes support the distinction of Idionycteris at the generic level; but relationships within tribe remain unclear. Two subspecies recognized.; [batnames2022] See Czaplewski (1983).; [IUCN] This species formerly included in the genus Plecotus  Simmons (2005) treated Idionycteris phyllotis and Euderma maculatum as generically distinct.; [batnames2023] See Czaplewski (1983).; [batnames2025_1.7] See Czaplewski (1983).						mexicanus.			mexicanus	phyllotis, hualapaiensis		phyllotis	phyllotis - mexicanus	phyllotis, mexicanus	This species formerly included in the genus Plecotus  Simmons (2005) treated Idionycteris phyllotis and Euderma maculatum as generically distinct.	phyllotis	phyllotis - mexicanus	phyllotis, mexicanus	phyllotis, mexicana, hualapaiensis	phyllotis	phyllotis - mexicanus	phyllotis (G. M. Allen, 1916)|mexicana H. E. Anthony, 1923|hualapaiensis Tumlison, 1993		Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp.	Allen's big-eared bat	Arizona, W New Mexico – 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.	Idionycteris phyllotis	Mexico, San Luis Potosi.	G. M. Allen	1916	Bull. Mus. Comp. Zool., 60:352.	Distribution: Same as for subgenus.		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	Allen's big-eared bat	Nevada, Utah – W New Mexico – 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.	G. M. Allen	1916	Bull. Mus. Comp. Zool., 60:352.	Formerly included in Plecotus; see Williams et al. (1970). See Czaplewski (1983, Mammalian Species, 208).	Distrito Federal (Mexico) to S Utah and S Nevada (USA).	Mexico, San Luis Potosi.		G. M. ALLEN	1916	Size fairly large (forearm length, 44-45 mm).	Distribution: Same as for subgenus.	No subspecies.		110	species	P. phyllotis	G. M. ALLEN	1916	Idionycteris	subgenus	Plecotus phyllotis				Size fairly large (forearm length, 44-45 mm).	No subspecies.		1. P. phyllotis (G. M. ALLEN 1916).	1	_I. p. hualapaiensis_ Tumlison, 1993; _I. p. phyllotis_ (Allen, 1916) (synonyms: _mexicana_ Anthony, 1923)			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	Plecotini	Idionycteris phyllotis	Idionycteris		phyllotis	G. M. Allen	y	1916		Bull. Mus. Comp. Zool.	60		352		Allen's Big-eared Bat	Mexico, San Luis Potosi, probably near city of San Luis Potosi (see Hall, 1981).	Distrito Federal and Michoacan (Mexico) to S Utah and S Nevada (USA).	IUCN 2003 and IUCN/SSC Action Plan (2001) – Lower Risk (lc).	mexicanus Anthony, 1923.	See Czaplewski (1983).	4C3D87E8FF896A37FA569CBC18D1BFDB	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	872	zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/4C/3D/87/4C3D87E8FF896A37FA569CBC18D1BFDB.xml	Idionycteris phyllotis	Vespertilionidae	Idionycteris	phyllotis		1916	Oreillard d'Allen @fr | Allen-Langohr @de | Orejudo de Allen @es | Lappet-browed Bat @en | Mexican Big-eared Bat @en	Corynorhinus phyllotis G. M. Allen, 1916 , “ Mexico : San Luis Potosi (probably near the city of the same name).” Previously placed in Plecotus but transferred to monotypic Idionycteris , based on morphological and chromosomal characters. Also using those characters, the genus had previously been synonymized with Euderma , but molecular reconstructions based on several mitochondrial and nuclear genes support the distinction of Idionycteris at the generic level; but relationships within tribe remain unclear. Two subspecies recognized.	IL p. phyllotis G. M. Allen, 1916 — C Arizona (SW USA ) S to Michoacan (SC Mexico). I. p. hualapaiensis Tumlison, 1993 — extreme S Nevada , S Utah , and N Arizona (SW USA ).	Head-body c. 65 mm , tail 40-53 mm , ear 34-43 mm , hindfoot 9-12 mm , forearm 41-8-49- 9 mm ; weight 8-16 g . Closely resembles Euderma and Plecotus distinguished from former by pair of lappets projecting over forehead from anterior base of ears, coloration, and presence of three lower premolars; from latter, by presence of lappets, keeled calcar, and nostrils not posteriorly elongated. Long dorsal fur (c. 10 mm ) is soft, with blackish bases contrasting with yellowish-gray tips, and blackish patches on shoulders; ventral fur has black bases and pale bufftips; tufts of white hair can be found on posterior bases of ears. Ears large; tragus ( 12-14 mm long) conspicuous. Uropatagium has 12-13 transversalribs, scarce hairs on basal surface, and is attached to hindfoot. Supraorbital region of skull sharply ridged;sagittal crest absent; rostrum broad and flattened; braincase also broad and shallow. P? is small and crowded between C' and P*, in which main cusp is slightly higher than molar series cusps; M? is about one-half size of M! and M2. Dental formulais12/3,C1/1,P 2/3, M 3/3 (x2) = 36. Chromosomal complement has 2n = 30 and FN = 50, which is most similar to the Spotted Bat ( Euderma maculatum ), differing by presence of medium-sized acrocentric autosome pair in Allen’s Big-eared Bat, rather than subtelocentric autosome pair.	Mountainous wooded habitats, from forests to riparian woodlands; also found in arid habitats, such as desert shrub, mesquite grassland with scattered oaks, xeric scrub, and tropical deciduous forests. Commonly found in rocky areas with outcrops, cliffs, boulders or lava flows, and also near water, along streams or over ponds. Recorded at elevations of 403-3225 m , but commonest above 900 m .	Insectivorous, feeding mainly on small moths, but also soldier beetles, dung beetles, leaf beetles, cockroaches, and flying ants. Echolocation patterns and flight movements suggest it to be highly flexible in foraging, capturing prey in flight but also by gleaning; can forage within or below forest canopy.	Pregnant females were recorded in June, all bearing a single embryo; lactating females from June to August. Flying young were reported at the end ofJuly.	Most specimens were captured 1-5-2 hours after sunset, at the start of its activity period. Day roosts were found in caves, mine shafts, boulders, sandstone crevices, and lava beds, and under loose bark of ponderosa pine ( Pinus ponderosa , Pinaceae ) snags. Echolocation calls are long CF/FM and FM sonar sounds. The long (20-200 milliseconds) CF sounds occur at 27 kHz, while FM sounds at end of call sweep down from 24 kHz to 12 kHz, with a second harmonic at 40-22 kHz.	During summer females gather in maternity colonies of 25-150 individuals; males are probably solitary and roost at other sites. Recorded sharing roosts with Townsend's Big-eared Bat ( Corynorhinus townsend) and the Fringed Myotis ( Myotis thysanodes ).	Classified as Least Concern on The IUCN Red List. Major threats are related to loss of roosting sites, including recreational and commercial activities in occupied roost sites, and timber management practices. Occurs in protected areas in Utah , Arizona , and New Mexico .	Anderson (1972) | Amadoret al. (2018) | Arroyo-Cabrales & Alvarez-Castafieda (2017e) | Barbour & Davis (1969) | Bat Conservation International (2018) | Bogdanowicz, Juste et al. (2005) | Bogdanowicz, Kasper & Owen (1998) | Czaplewski (1983) | Hall (1981) | Handley (1959) | Hayes et al. (2009) | Ortega & Arita (2014c¢) | Rabe et al. (1998) | Roehrs et al. (2010) | Simmons, J.A. & O'Farrell (1977) | Simmons, N.B. (2005) | Williams et al. (1970) | Wilson & Ruff (1999)	https://zenodo.org/record/6398335/files/figure.png	248. Allen’s Big-eared Bat Idionycteris phyllotis French: Oreillard d'Allen / German: Allen-Langohr / Spanish: Orejudo de Allen Other common names: Lappet-browed Bat , Mexican Big-eared Bat Taxonomy. Corynorhinus phyllotis G. M. Allen, 1916 , “ Mexico : San Luis Potosi (probably near the city of the same name).” Previously placed in Plecotus but transferred to monotypic Idionycteris , based on morphological and chromosomal characters. Also using those characters, the genus had previously been synonymized with Euderma , but molecular reconstructions based on several mitochondrial and nuclear genes support the distinction of Idionycteris at the generic level; but relationships within tribe remain unclear. Two subspecies recognized. Subspecies and Distribution. IL p. phyllotis G. M. Allen, 1916 — C Arizona (SW USA ) S to Michoacan (SC Mexico). I. p. hualapaiensis Tumlison, 1993 — extreme S Nevada , S Utah , and N Arizona (SW USA ). Descriptive notes. Head-body c. 65 mm , tail 40-53 mm , ear 34-43 mm , hindfoot 9-12 mm , forearm 41-8-49- 9 mm ; weight 8-16 g . Closely resembles Euderma and Plecotus distinguished from former by pair of lappets projecting over forehead from anterior base of ears, coloration, and presence of three lower premolars; from latter, by presence of lappets, keeled calcar, and nostrils not posteriorly elongated. Long dorsal fur (c. 10 mm ) is soft, with blackish bases contrasting with yellowish-gray tips, and blackish patches on shoulders; ventral fur has black bases and pale bufftips; tufts of white hair can be found on posterior bases of ears. Ears large; tragus ( 12-14 mm long) conspicuous. Uropatagium has 12-13 transversalribs, scarce hairs on basal surface, and is attached to hindfoot. Supraorbital region of skull sharply ridged;sagittal crest absent; rostrum broad and flattened; braincase also broad and shallow. P? is small and crowded between C' and P*, in which main cusp is slightly higher than molar series cusps; M? is about one-half size of M! and M2. Dental formulais12/3,C1/1,P 2/3, M 3/3 (x2) = 36. Chromosomal complement has 2n = 30 and FN = 50, which is most similar to the Spotted Bat ( Euderma maculatum ), differing by presence of medium-sized acrocentric autosome pair in Allen’s Big-eared Bat, rather than subtelocentric autosome pair. Habitat. Mountainous wooded habitats, from forests to riparian woodlands; also found in arid habitats, such as desert shrub, mesquite grassland with scattered oaks, xeric scrub, and tropical deciduous forests. Commonly found in rocky areas with outcrops, cliffs, boulders or lava flows, and also near water, along streams or over ponds. Recorded at elevations of 403-3225 m , but commonest above 900 m . Food and Feeding. Insectivorous, feeding mainly on small moths, but also soldier beetles, dung beetles, leaf beetles, cockroaches, and flying ants. Echolocation patterns and flight movements suggest it to be highly flexible in foraging, capturing prey in flight but also by gleaning; can forage within or below forest canopy. Breeding. Pregnant females were recorded in June, all bearing a single embryo; lactating females from June to August. Flying young were reported at the end ofJuly. Activity patterns. Most specimens were captured 1-5-2 hours after sunset, at the start of its activity period. Day roosts were found in caves, mine shafts, boulders, sandstone crevices, and lava beds, and under loose bark of ponderosa pine ( Pinus ponderosa , Pinaceae ) snags. Echolocation calls are long CF/FM and FM sonar sounds. The long (20-200 milliseconds) CF sounds occur at 27 kHz, while FM sounds at end of call sweep down from 24 kHz to 12 kHz, with a second harmonic at 40-22 kHz. Movements, Home range and Social organization. During summer females gather in maternity colonies of 25-150 individuals; males are probably solitary and roost at other sites. Recorded sharing roosts with Townsend's Big-eared Bat ( Corynorhinus townsend) and the Fringed Myotis ( Myotis thysanodes ). Status and Conservation. Classified as Least Concern on The IUCN Red List. Major threats are related to loss of roosting sites, including recreational and commercial activities in occupied roost sites, and timber management practices. Occurs in protected areas in Utah , Arizona , and New Mexico . Bibliography. Anderson (1972), Amadoret al. (2018), Arroyo-Cabrales & Alvarez-Castafieda (2017e), Barbour & Davis (1969), Bat Conservation International (2018), Bogdanowicz, Juste et al. (2005), Bogdanowicz, Kasper & Owen (1998), Czaplewski (1983), Hall (1981), Handley (1959), Hayes et al. (2009), Ortega & Arita (2014c¢), Rabe et al. (1998), Roehrs et al. (2010), Simmons, J.A. & O'Farrell (1977), Simmons, N.B. (2005), Williams et al. (1970), 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	Idionycteris phyllotis	Idionycteris		phyllotis	G. M. Allen	1916	1	Bull. Mus. Comp. Zool.	65:52:00	Allen's Big-eared Bat	 mexicanus Anthony, 1923.	Mexico, San Luis Potosi, probably near city of San Luis Potosi (see Hall, 1981).	Distrito Federal and Michoacan (Mexico) to S Utah and S Nevada (USA).	Not listed.	Least Concern	See Czaplewski (1983).	Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023	Idionycteris phyllotis	23	Allen's Big-eared Bat	Lappet-browed Bat|Mexican Big-eared Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	VESPERTILIONIDAE	VESPERTILIONINAE	PLECOTINI	Idionycteris	NA	phyllotis	G. M. Allen	1916	1	Corynorhinus_phyllotis	Allen, G. M. (1916). Bats of the Genus Corynorhinus. Bulletin of the Museum of Comparative Zoology at Harvard College, 60, 352..	https://www.biodiversitylibrary.org/page/2747953#page/574/mode/1up	MCZ 5943		"Mexico: San Luis Potosi (probably near the city of the same name)."			phyllotis (G. M. Allen, 1916)|mexicanus Anthony, 1923	NA	NA	United States|Mexico	North America	Nearctic	LC	0	0	0	Idionycteris_phyllotis	0	sciname match	Idionycteris_phyllotis	0	IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022].	10790	Idionycteris phyllotis	ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	VESPERTILIONIDAE	Idionycteris	phyllotis	(G.M. Allen, 1916)	This species formerly included in the genus Plecotus  Simmons (2005) treated Idionycteris phyllotis and Euderma maculatum as generically distinct.	20000000	Idionycteris phyllotis	Least Concern		2017	2016-08-26 00:00:00 UTC	3.1	English	This species is listed 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.	The biology of this species is poorly known. It occurs in a variety of wooded habitats including especially ponderosa pine forest, pinyon-juniper woodland, riparian woodland, encinal (oak woodland), pine-oak woodland, and fir forest. Others come from more arid habitats, including desert shrub, mesquite grassland with scattered oaks, xeric scrub, and tropical deciduous forest. The species is a highly adapted insect predator using a sophisticated combination of sonar signals and flight maneuvers to forage for and intercept its nocturnal prey. It feeds on small moths; other known prey include soldier beetles, dung beetles, leaf beetles, roaches, and flying ants (Wilson and Ruff 1999). Habitat is primarily mountainous wooded areas (e.g., ponderosa pine, pinyon-juniper, Mexican woodland, oak brsuh) but also includes riparian (e.g., cottonwood) woodland and ranges from Mohave desert scrub of low desert ranges to white fir forest (Hoffmeister 1986). Typically this bat is found near rocks: cliffs, boulders, lava flows, etc., and it is frequently netted along streams or over ponds. Maternity colonies of 30 to 150 individuals have been found in mine shafts, boulder piles, sandstone crevices, lava beds, and beneath the loose bark of large ponderosa pine snags (Bat Conservation International, Western Bat Working Group, Czaplewski 1983, Rabe et al. 1998, Adams 2003).	Extent of occurrence, area of occupancy, number of subpopulations, and population size apparently have declined but probably at a rate of less than 10% over 10 years or three generations. ;Threats include recreational entry into occupied caves/mines, active mining in occupied tunnels, vandalism or closure of abandoned mines used as maternity roosts, and timber management practices that reduce the availability of large pine snags for roosting. The Western Bat Working Group categorized the threat as "High" throughout the Rocky Mountain region (Adams 2003). The Arizona and Nevada natural heritage programs considered the degree of threat to be moderate (Sabra Schwartz and Carrie Carreno pers. comm., 1998). Lack of adequate information for Mexican populations prevents range-wide assessment of the scope of threat. An important mine roost was destroyed by relocation of a nearby highway (Adams 2003). Maternity colonies are easily disturbed, often resulting in abandonment (Arizona Game and Fish Department 1997). Limited data suggest that this bat may abandon mines that have been gated to prevent recreational entry, even if the gates are permeable to other bat species (Western Bat Working Group).	The species is uncommon in USA (Wilson and Ruff 1999), where it is represented by several dozen occurrences or subpopulations. Occurrence information is not available for the bulk of the range in Mexico. ;In Mexico these are considered uncommon (Ceballos and Oliva 2005). Total adult population size is unknown but presumably exceeds 10,000. Up to 100 individuals per roost have been observed in six roosts in the Coconino National Forest, Arizona (Mammal Diversity Review Notes 1996). Population trends are not definitely known, but extent of occurrence, area of occupancy, number of subpopulations, and population size probably have not declined substantially compared to the historical situation. Barbour and Davis (1969) and Hoffmeister (1986) pointed to the paucity of pre-1955 records for Arizona and discussed the possibility that this species has only recently expanded its range to Arizona, Nevada, Utah, and New Mexico. Hoffmeister (1986) found no factor (e.g., habitat change) that might account for this possible change. Population trends are unknown in Utah and Nevada (G. Oliver and C. Carreno pers. comm. 1998). Possibly stable in Arizona (S. Schwartz pers. comm. 1998).	Stable	This species occurs from Distrito Federal and Michoacan (Mexico) to south Utah and south Nevada (USA) (Simmons 2005). ;The range encompasses the southwestern United States and part of Mexico, from southern Utah and southern Nevada south through Arizona (northwestern, central, southeastern; Hoffmeister 1986) and New Mexico (Mogollon Plateau and western Soccoro County in the San Mateo and Magdalena mountains (Frey 2004) to Distrito Federal and Michoacan in southern central Mexico (Simmons, 2005), including the Sierra Madre Occidental, Sierra Madre Oriental, and Sierra Volcanica Transversal. The range closely approaches California and Colorado, but as of 2005 no records were available for those states. The winter range is not known. The elevational range extends from 403 to 3,225 meters, with most records at 1,100-2,500 meters. Subspecies hualapaiensis : southern Nevada, southern Utah, and northern Arizona (Mohave County and Coconino County north of the Grand Canyon); subspecies phyllotis : remainder of range (Tumlison and Douglas 1992).		Terrestrial	At least four protected occurrences exist in Utah: Canyonlands National Park, Capitol Reef National Park, Glen Canyon National Recreation Area, and Natural Bridges National Monument (George Oliver pers. comm., 1998), and at least a few additional protected occurrences are in Arizona (e.g., Grand Canyon National Park) and New Mexico. Occurrences in several national forests and in national wildlife refuges do not necessarily result in much protection for this species. Increased efforts are needed to improve our knowledge of the distribution and abundance of this species throughout its range.Most aspects of the ecology of this species need further study.	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	Idionycteris		phyllotis	G. M. Allen	1916	1	Bull. Mus. Comp. Zool.	65:52:00	Allen's Big-eared Bat	 mexicanus Anthony, 1923.	Mexico, San Luis Potosi, probably near city of San Luis Potosi (see Hall, 1981).	Distrito Federal and Michoacan (Mexico) to S Utah and S Nevada (USA).	Not listed.	Least Concern	See Czaplewski (1983).	Idionycteris phyllotis	1005659	23	Allen's Big-eared Bat	Lappet-browed Bat|Mexican Big-eared Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	Vespertilionidae	VESPERTILIONINAE	PLECOTINI	Idionycteris	NA	phyllotis	G. M. Allen	1916	1	Corynorhinus_phyllotis	Allen, G. M. (1916). Bats of the Genus Corynorhinus. Bulletin of the Museum of Comparative Zoology at Harvard College, 60, 352..	https://www.biodiversitylibrary.org/page/2747953#page/574/mode/1up	MCZ 5943		"Mexico: San Luis Potosi (probably near the city of the same name)."			phyllotis (G. M. Allen, 1916)|mexicanus Anthony, 1923	NA	NA			USA(AZ,NM,TX)	United States|Mexico	North America	Nearctic	LC	0	0	0	Idionycteris_phyllotis	0	sciname match	Idionycteris_phyllotis	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	Idionycteris_phyllotis	1005659	23	Allen's Big-eared Bat	Lappet-browed Bat|Mexican Big-eared Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	Chiroptera	Yangochiroptera	NA	NA	Vespertilionoidea	Vespertilionidae	Vespertilioninae	Plecotini	Idionycteris	NA	phyllotis	G. M. Allen	1	Corynorhinus phyllotis	Allen, G.M. 1916-04-20. Bats of the genus _Corynorhinus_. Bulletin of the Museum of Comparative Zoology 60(9):331-356.	https://www.biodiversitylibrary.org/page/2748106	MCZ:Mamm:5943	holotype	https://mczbase.mcz.harvard.edu/guid/MCZ:Mamm:5943	"Mexico: San Luis Potosi (probably near the city of the same name)."			NA	NA			USA(AZ,NM,TX)	United States|Mexico	North America	Nearctic	LC	0	0	0	Idionycteris_phyllotis	0	sciname match	Idionycteris_phyllotis	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	Idionycteris		phyllotis	G. M. Allen	1916	1	Bull. Mus. Comp. Zool.	65:52:00	Allen's Big-eared Bat	mexicanus Anthony, 1923.	Mexico, San Luis Potosi, probably near city of San Luis Potosi (see Hall, 1981).	Distrito Federal and Michoacan (Mexico) to S Utah and S Nevada (USA).	<a href='https://cites.org/eng/app/appendices.php' target='_blank'>Not Listed</a>	<a href='https://www.iucnredlist.org/species/10790/21990019/' target='_blank'>Least Concern</a>	See Czaplewski (1983).		Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505	NA	Idionycteris phyllotis; Idionycteris phyllotis; Idionycteris phyllotis; Idionycteris phyllotis; Idionycteris phyllotis; Idionycteris phyllotis; mexicanus; phyllotis; hualapaiensis; mexicanus; phyllotis; mexicanus; Oreillard d'Allen; Allen-Langohr; Orejudo de Allen; Lappet-browed Bat; Mexican Big-eared Bat; Allen's Big-eared Bat; Lappet-browed Bat; Mexican Big-eared Bat; Allen's Big-eared Bat; Allen's Big-eared Bat; I. phyllotis