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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L535	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis	Lasiurus borealis		[MSW2] Subgenus Lasiurus. Includes degelidus, minor, pfeifferi, blossevillii; see Varona (1974:36), but see also Baker et al. (1988fl). Includes brachyotis; see Niethammer (1964:595). See Shump and Shump (1982fl, Mammalian Species, 183). While there is evidence that more than one species is involved in this complex, the true picture is still far from clear. Until it is better resolved, keeping all the named forms together seems preferable to a premature split.; [MSW3] Subgenus Lasiurus, borealis species group. Does not include blossevillii, frantzii, teliotis, and varius; see Schmidly and Hendricks (1984), Baker et al. (1988a), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988a) but might include minor. Does not include pfeifferi; see Morales and Bickham (1995). See Shump and Shump (1982a) but note that they included blossevillii and its synonyms in borealis.; [HMW] Vespertilio borealis P. L.. S. Muller, 1776 , New York , USA . See L. egregius . Lasiurus borealis is in the Red Bat group. Monotypic.; [batnames2022] Subgenus Lasiurus , borealis species group. Does not include blossevillii , frantzii , teliotis , and varius ; see Schmidly and Hendricks (1984), Baker et al. (1988 a ), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988 a ) but might include minor . Does not include pfeifferi ; see Morales andBickham (1995). See Shump and Shump (1982 a ) but note that they included blossevillii and its synonyms in borealis .; [IUCN] Subgenus Lasiurus , borealis species group (Simmons 2005).; [batnames2023] Subgenus Lasiurus , borealis species group. Does not include blossevillii , frantzii , teliotis , and varius ; see Schmidly and Hendricks (1984), Baker et al. (1988 a ), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988 a ) but might include minor . Does not include pfeifferi ; see Morales andBickham (1995). See Shump and Shump (1982 a ) but note that they included blossevillii and its synonyms in borealis .; [batnames2025_1.7] Subgenus Lasiurus, borealis species group. Does not include blossevillii, frantzii, teliotis, andvarius; see Schmidly and Hendricks (1984), Baker et al. (1988a), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988a) but might include minor. Does not include pfeifferi; see Morales andBickham (1995). See Shump and Shump (1982a) but note that they included blossevillii and its synonyms in borealis.				degelidus, minor, pfeifferi, brachyotis	(pfeifferi) (degelidus) (minor) (brachyotis)	blossevillii, bonariensis, brachyotis, degelidus, enslenii, frantzii, funebris, minor, lasiurus, monachus, noveboracensis, ornatus, pfeifferi, quebecensis, rubellus, rubra, rufus, salinae, teliotis, tesselatus, varius.	borealis, teliotis, frantzii, pfeifferi, degelidus, minor, blossevillii, varius, brachyotis, seminolus		funebris, lasiurus, monachus, noveboracensis, quebecensis, rubellus, rubra, rufus, tesselatus			borealis 	borealis - funebris, lasiurus, monachus, noveboracensis, quebecensis, rubellus, rubra, rufus, tesselatus	borealis, noveboracensis, lasiurus, rubellus, rubra, monachus, tesselatus, rufus, funebris, quebecensis	Subgenus Lasiurus , borealis species group (Simmons 2005).	borealis 	borealis - funebris, lasiurus, monachus, noveboracensis, quebecensis, rubellus, rubra, rufus, tesselatus	borealis, noveboracensis, lasiurus, rubellus, rubra, monachus, tesselatus, rufus, funebris, quebecensis	borealis, noveboracensis, lasiurus, rubellus, americanus, noreboracensis, ruber, monachus, tesselatus, rufus, tessellatus, rafinesquii, novaeboracensis, funebris	borealis	borealis - funebris, lasiurus, monachus, noveboracensis, quebecensis, rubellus, rubra, rufus, tesselatus	borealis (P. L. S. Müller, 1776)|noveboracensis (Erxleben, 1777)|lasiurus (von Schreber, 1781)|noveboravensis (E. A. W. von Zimmermann, 1783) [incorrect subsequent spelling]|lasurus (Boddaert, 1785) [incorrect subsequent spelling]|noveboracus (Boddaert, 1785) [incorrect subsequent spelling]|rubellus (Palisot de Beauvois, 1796) [preoccupied]|americanus (Rafinesque, 1814) [nomen novum]|noreboracensis (G. Fischer, 1814) [incorrect subsequent spelling]|ruber (Ord, 1815) [preoccupied]|monachus (Rafinesque, 1818)|tesselatus (Rafinesque, 1818)|novaeboracensis (Muirhead, 1819) [incorrect subsequent spelling]|rufus (D. B. Warden, 1820)|tessellatus (Lesson, 1827) [incorrect subsequent spelling]|rafinesquii (Lesson, 1836) [nomen novum]|funebris Fitzinger, 1870|quebecensis (Yourans, 1930)		Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp.	Red bat	S Canada – C Chile, Argentina, Bahamas, Greater Antilles, Puerto Rico	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.	Lasiurus borealis	U.S.A., New York.	Muller	1776	Ritter Carl Linne Natursystem, Suppl., p. 20.	Distribution: Same as for subgenus but absent from Hawaii and most of the Rocky Mountain region.		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	Red bat	S Canada – C Chile, Argentina; Bahamas, Trinidad, Greater Antilles, Puerto Rico, Bermuda, Galapagos; ref. 4.40	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.	Muller	1776	Linn^'s Vollstand. Natursystem, Suppl., p. 20.	Subgenus Lasiurus. Includes degelidus, minor, pfeifferi, blossevillii; see Varona (1974:36), but see also Baker et al. (1988fl). Includes brachyotis; see Niethammer (1964:595). See Shump and Shump (1982fl, Mammalian Species, 183). While there is evidence that more than one species is involved in this complex, the true picture is still far from clear. Until it is better resolved, keeping all the named forms together seems preferable to a premature split.	Chile, Argentina, Uruguay and Brazil to C Canada; Jamaica; Cuba; Hispaniola; Puerto Rico; Bermuda; Bahamas; Trinidad and Tobago; Galapagos (Ecuador).	USA, New York.		MÜLLER	1776	Size relatively small (forearm length, 37-44 mm). Basicranial plane parallel with palate. Lacrimal tubercle variably developed. Anterior upper premolar usually present.	Distribution: Same as for subgenus but absent from Hawaii and most of the Rocky Mountain region.	Ten subspecies are here recognized:	L. b. borealis (eastern and central North America from central Canada to northern Florida and northwestern Mexico), L. b. teliotis (southeastern Canada to south-central Mexico), L. b.frantzii (southern Mexico to Amazonian Brazil, including Trinidad and Tobago), L. b. pfeifferi (Cuba), L. b. degelidus (Jamaica), L. b. minor (Bahamas, Hispaniola, and Puerto Rico), L. b. blossevillii (eastern Brazil to northern Argentina), L. b. varius (Chile and southern Argentina), L. b. brachyotis (Galapagos), L. b. seminolus (southeastern United States and apparently Bermuda). More than one species is usually recognized in this complex but a skull character (lacrimal tubercle) does not clearly distinguish seminolus from all of the rest, coloration in some areas shows great variation, and migration obscures possible overlap at mating time. However, it is nevertheless possible that several species are represented in this complex.	129	species	L. borealis	MÜLLER	1776	Lasiurus	subgenus	Lasiurus borealis				Size relatively small (forearm length, 37-44 mm). Basicranial plane parallel with palate. Lacrimal tubercle variably developed. Anterior upper premolar usually present.	Ten subspecies are here recognized:		1. L. borealis (MÜLLER 1776).	1	NA			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	Lasiurini	Lasiurus borealis	Lasiurus	Lasiurus	borealis	Müller	y	1776		Linné's Vollstand. Natursystem, Suppl.			20		Eastern Red Bat	USA, New York.	E North America, Bermuda.	IUCN 2003 and IUCN/SSC Action Plan (2001) – Lower Risk (lc).	funebris Fitzinger, 1870; lasiurus Schreber, 1781; monachus Rafinesque, 1818; noveboracensis Erxleben, 1777; quebecensis Yourans, 1930; rubellus Palisot de Beauvois, 1796; rubra Ord, 1815; rufus Wardern, 1820; tesselatus Rafinesque, 1818.	Subgenus Lasiurus, borealis species group. Does not include blossevillii, frantzii, teliotis, and varius; see Schmidly and Hendricks (1984), Baker et al. (1988a), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988a) but might include minor. Does not include pfeifferi; see Morales and Bickham (1995). See Shump and Shump (1982a) but note that they included blossevillii and its synonyms in borealis.	4C3D87E8FF8C6A33FF78907D18FDBE6F	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	877	zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/4C/3D/87/4C3D87E8FF8C6A33FF78907D18FDBE6F.xml	Lasiurus borealis	Vespertilionidae	Lasiurus	borealis		1776	Lasiure boréal @fr | Rote Haarschwanzfledermaus @de | Lasiuroboreal @es | Red Bat @en	Vespertilio borealis P. L.. S. Muller, 1776 , New York , USA . See L. egregius . Lasiurus borealis is in the Red Bat group. Monotypic.	From S Canada (extreme SE Saskatchewan , S Manitoba , S Ontario , S Quebec , New Brunswick , and Nova Scotia ) S through C & E USA to NE Mexico.	Head-body c¢.55-2— 59.6 mm, tail 45-62 mm , ear 7-13 mm , hindfoot 6-11 mm , forearm 35- 7-46 mm ; weight 7-16 g . Females are larger than males. Hairs are dense and long; upperparts are bright red to pale red, washed with white, and pale white patch occur on shoulders. Underparts are slightly paler. Ears are wide, short, and rounded, with basal two-thirds of outer part furred. Distal end of tragus is triangular. Wing membranes are dark; uropatagium is densely furred throughout. Claws are black; calcar is about twice as long as hindfoot. Skull is short and broad; braincase is high and rounded; palatal emargination is wider than depth; floor of braincase and palate are not parallel. Teeth are large, P? is minute and displaced inward, and upper molars are broad on inner side. Dental formulais11/3,C1/1,P 2/2, M 3/3 (x2) = 32. Chromosomal complement has 2n = 28 and FN = 48, with medium-sized submetacentric X-chromosome and small acrocentric Y-chromosome.	Xeric shrublands, thorny forests, and deciduous forests at elevations of 400- 1600 m .	Right after emerging from day roosts, Eastern Red Bats fly high, slowly, and erratically during the first 15-30 minutes. Afterward they descend and start foraging from treetops to almost ground level. At this time, they fly straight or in wide circles, and this pattern is only altered during insect captures. They might forage in groups, and individuals have been observed flying low over waterto capture insects and drink,at crowns of trees, and near streetlamps. They seem to establish feeding territories. Moths were most abundant (26-2% by volume) in stomach contents from Indiana . Eastern Red Bats are known to eat Homoptera, Coleoptera , Diptera , Hymenoptera , Orthoptera , Hemiptera , and Lepidoptera , including flies, beetles, crickets, and cicadas.	Mating of Eastern Red Bats takes place in flight, and breeding usually occurs in August-September, with sperm being stored until spring. Gestation lasts 80-90 days, and young are observed in May-July; parturition occurs mostly in June; and litters have 1-5 young (average 2-3). Pregnant females have been captured in June and lactating females from late June to early August. Young take c.5 weeks to learn how to fly and forage by themselves.	The Eastern Red Bat starts foraging 1-2 hours after sunset; some individuals feed throughout the night. Individuals become active at temperatures of 13-20°C, which helps them to avoid unnecessary pauses in hibernation during temperature shifts. Densely and thickly furred uropatagium helps keep them warm during cold weather. Eastern Red Bats roost in dense foliage of trees and shrubs; roosts have been found in edge habitats near streams, openfields, and urban areas. Roosting sites can be from ground level up to 12 m aboveground. When roosting, Eastern Red Bats can be seen hanging from branches or leaves, but their reddish color acts as a camouflage from predators. Some trees such as sycamores, oaks, elms, and box elders seem to be preferred as roosting sites because they provide camouflage due to pigmentation and density of leaves. Echolocation calls are shallow FM sweeps that last more than 5 milliseconds, and frequencies vary mainly from 40 kHz to 45 kHz. Predators include domestic cats, Virginia Opossums (Didelphis virginiana), diurnal raptors, owls, great roadrunners (Geococeyx californianus), and blue jays (Cyanocitta cristata).	The Eastern Red Batis solitary, except for family groups formed by females and young. It typically migrates to warmer regions, forming migration groups; however, males and females migrate at different times and have different distributions in summer. Some non-migratory individuals in the northern part of the distribution hibernate in hollow trees. Migrating individuals arrive in the north in mid-April and leave in late October. Numbers of individuals in the southern part of the distribution increase from December to March. Body temperature is kept just above freezing, and they cannot tolerate long periods of below freezing temperatures. Fat reserves are severely depleted during hibernation; they can lose up to 25% oftheir autumn pre-hibernation body weight. Some individuals come out of hibernation during warm days to feed before dusk. Individuals can fly more than 2 km from day roosts to forage, and mean forage areas are 62-146 ha.	Classified as Least Concern on The IUCN Red List. The Eastern Red Bat is widely distributed, populations are presumably large, and it occurs in protected areas.	Alvarez-Castafieda & Gonzalez-Ruiz (2018) | Arroyo-Cabrales et al. (2016) | Baird et al. (2015) | Baker & Patton (1967) | Constantine (1966) | Elmore et al. (2005) | Fenton (1985a) | Fenton, Merriam & Holroyd (1983) | Morales et al. (2014b) | Myers & Hatchett (2000) | Novaes, Garbino et al. (2018) | Shump & Shump (1982a) | Simmons (2005) | Wilson & Ruff (1999)	https://zenodo.org/record/6398350/files/figure.png	254. Eastern Red Bat Lasiurus borealis French: Lasiure boréal / German: Rote Haarschwanzfledermaus / Spanish: Lasiuro boreal Other common names: Red Bat Taxonomy. Vespertilio borealis P. L.. S. Muller, 1776 , New York , USA . See L. egregius . Lasiurus borealis is in the Red Bat group. Monotypic. Distribution. From S Canada (extreme SE Saskatchewan , S Manitoba , S Ontario , S Quebec , New Brunswick , and Nova Scotia ) S through C & E USA to NE Mexico. Descriptive notes. Head-body c¢.55-2— 59.6 mm, tail 45-62 mm , ear 7-13 mm , hindfoot 6-11 mm , forearm 35- 7-46 mm ; weight 7-16 g . Females are larger than males. Hairs are dense and long; upperparts are bright red to pale red, washed with white, and pale white patch occur on shoulders. Underparts are slightly paler. Ears are wide, short, and rounded, with basal two-thirds of outer part furred. Distal end of tragus is triangular. Wing membranes are dark; uropatagium is densely furred throughout. Claws are black; calcar is about twice as long as hindfoot. Skull is short and broad; braincase is high and rounded; palatal emargination is wider than depth; floor of braincase and palate are not parallel. Teeth are large, P? is minute and displaced inward, and upper molars are broad on inner side. Dental formulais11/3,C1/1,P 2/2, M 3/3 (x2) = 32. Chromosomal complement has 2n = 28 and FN = 48, with medium-sized submetacentric X-chromosome and small acrocentric Y-chromosome. Habitat. Xeric shrublands, thorny forests, and deciduous forests at elevations of 400- 1600 m . Food and Feeding. Right after emerging from day roosts, Eastern Red Bats fly high, slowly, and erratically during the first 15-30 minutes. Afterward they descend and start foraging from treetops to almost ground level. At this time, they fly straight or in wide circles, and this pattern is only altered during insect captures. They might forage in groups, and individuals have been observed flying low over waterto capture insects and drink,at crowns of trees, and near streetlamps. They seem to establish feeding territories. Moths were most abundant (26-2% by volume) in stomach contents from Indiana . Eastern Red Bats are known to eat Homoptera, Coleoptera , Diptera , Hymenoptera , Orthoptera , Hemiptera , and Lepidoptera , including flies, beetles, crickets, and cicadas. Breeding. Mating of Eastern Red Bats takes place in flight, and breeding usually occurs in August-September, with sperm being stored until spring. Gestation lasts 80-90 days, and young are observed in May-July; parturition occurs mostly in June; and litters have 1-5 young (average 2-3). Pregnant females have been captured in June and lactating females from late June to early August. Young take c.5 weeks to learn how to fly and forage by themselves. Activity patterns. The Eastern Red Bat starts foraging 1-2 hours after sunset; some individuals feed throughout the night. Individuals become active at temperatures of 13-20°C, which helps them to avoid unnecessary pauses in hibernation during temperature shifts. Densely and thickly furred uropatagium helps keep them warm during cold weather. Eastern Red Bats roost in dense foliage of trees and shrubs; roosts have been found in edge habitats near streams, openfields, and urban areas. Roosting sites can be from ground level up to 12 m aboveground. When roosting, Eastern Red Bats can be seen hanging from branches or leaves, but their reddish color acts as a camouflage from predators. Some trees such as sycamores, oaks, elms, and box elders seem to be preferred as roosting sites because they provide camouflage due to pigmentation and density of leaves. Echolocation calls are shallow FM sweeps that last more than 5 milliseconds, and frequencies vary mainly from 40 kHz to 45 kHz. Predators include domestic cats, Virginia Opossums (Didelphis virginiana), diurnal raptors, owls, great roadrunners (Geococeyx californianus), and blue jays (Cyanocitta cristata). Movements, Home range and Social organization. The Eastern Red Batis solitary, except for family groups formed by females and young. It typically migrates to warmer regions, forming migration groups; however, males and females migrate at different times and have different distributions in summer. Some non-migratory individuals in the northern part of the distribution hibernate in hollow trees. Migrating individuals arrive in the north in mid-April and leave in late October. Numbers of individuals in the southern part of the distribution increase from December to March. Body temperature is kept just above freezing, and they cannot tolerate long periods of below freezing temperatures. Fat reserves are severely depleted during hibernation; they can lose up to 25% oftheir autumn pre-hibernation body weight. Some individuals come out of hibernation during warm days to feed before dusk. Individuals can fly more than 2 km from day roosts to forage, and mean forage areas are 62-146 ha. Status and Conservation. Classified as Least Concern on The IUCN Red List. The Eastern Red Bat is widely distributed, populations are presumably large, and it occurs in protected areas. Bibliography. Alvarez-Castafieda & Gonzalez-Ruiz (2018), Arroyo-Cabrales et al. (2016), Baird et al. (2015), Baker & Patton (1967), Constantine (1966), Elmore et al. (2005), Fenton (1985a), Fenton, Merriam & Holroyd (1983), Morales et al. (2014b), Myers & Hatchett (2000), Novaes, Garbino et al. (2018), Shump & Shump (1982a), Simmons (2005), 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	Lasiurus borealis	Lasiurus	Lasiurus	borealis	M&uuml;ller	1776	1	Linn&eacute;'s Vollstand. Natursystem, Suppl.	p. 20	Eastern Red Bat	 funebris Fitzinger, 1870; lasiurus Schreber, 1781; monachus Rafinesque, 1818; noveboracensis Erxleben, 1777; quebecensis Yourans, 1930; rubellus Palisot de Beauvois, 1796; rubra Ord, 1815; rufus Wardern, 1820; tesselatus Rafinesque, 1818.	USA, New York.	E North America, Bermuda.	Not listed.	Least Concern	Subgenus Lasiurus , borealis species group. Does not include blossevillii , frantzii , teliotis , and varius ; see Schmidly and Hendricks (1984), Baker et al. (1988 a ), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988 a ) but might include minor . Does not include pfeifferi ; see Morales andBickham (1995). See Shump and Shump (1982 a ) but note that they included blossevillii and its synonyms in borealis .	Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023	Lasiurus borealis	23	Eastern Red Bat	Red Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	VESPERTILIONIDAE	VESPERTILIONINAE	LASIURINI	Lasiurus	NA	borealis	P. L. S. Müller	1776	1						New York, USA.			borealis (P. L. S. Müller, 1776)|noveboracensis (Erxleben, 1777)|lasiurus (von Schreber, 1781)|rubellus (Palisot de Beauvois, 1796)|rubra (Ord, 1815)|monachus (Rafinesque, 1818)|tesselatus (Rafinesque, 1818)|rufus (Warden, 1820)|funebris Fitzinger, 1870|quebecensis (Yourans, 1930)	NA	NA	Canada|United States|Mexico	North America	Nearctic	LC	0	0	0	Lasiurus_borealis	0	sciname match	Lasiurus_borealis	0	IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022].	11347	Lasiurus borealis	ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	VESPERTILIONIDAE	Lasiurus	borealis	(Müller, 1776)	Subgenus Lasiurus , borealis species group (Simmons 2005).	20000000	Lasiurus borealis	Least Concern		2016	2015-07-20 00:00:00 UTC	3.1	English	The Eastern Red Bat is listed as Least Concern in because of its wide distribution, presumed large population, occurrence in protected areas, tolerance to some degree of habitat modification, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.	The species tends to choose habitats that are sparsely to moderately populated by humans and are rare in heavily urbanized areas. Mating takes place in flight and copulation usually occurs in August or September. The sperm is stored until the spring, usually March or April. Female red bats possess four mammary glands while most other chiropterans have two. Female Red Bats give birth to one litter of twins each year, unlike most bats which give birth to single young. Newborn bats are hairless and weigh approximately 1.5 g. The young learn to fly at about five weeks old. Like all mammals, female red bats nurse their young until the young are able to fend for themselves. It takes young red bats about five weeks to learn how to fly and forage on their own (Myers and Hatchett 2000). Lasiurus borealis choose roosting sites in dense foliage. They may be visible hanging from branches or leaves but their colouration helps to camouflage them from predators. Their red coat is particularly helpful at camouflaging them in sycamore, oaks, elm, and box elder trees and they seem to prefer these trees as roost sites (Constantine 1996). Sites that have been used as roosting areas range from 2 to 40 feet off the ground. The roosting sites of solitary bats have not been as well studied as those of more gregarious bats. Some field workers believe that red bats defend feeding territories (Constantine 1966, Fenton 1985). Red bats are insectivorous. They capture insects while flying like many other insectivorous bats (Myers and Hatchett 2000).	Red Bats are secure over most of their range and are not considered threatened (Myers and Hatchett 2000).	Red Bats are migratory, arriving in the northern climates in mid-April and leaving in late October. There are records of bats hibernating in the northern parts of their range, but they typically migrate to warmer regions. When red bats hibernate they choose hollow trees. They maintain body temperatures just above freezing and cannot withstand prolonged periods of below freezing temperatures. They may lose up to 25% of their pre-hibernation weight by spring, severely depleting fat reserves (Fenton 1985).	Stable	The species occurs in eastern North America, Bermuda (Simmons 2005) and northeastern Mexico (Arroyo-Cabrales pers. comm).		Terrestrial	This species occurs within protected areas in Mexico.	Nearctic|Neotropical		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	Lasiurus	Lasiurus	borealis	M&uuml;ller	1776	1	Linn&eacute;'s Vollstand. Natursystem, Suppl.	p. 20	Eastern Red Bat	 funebris Fitzinger, 1870; lasiurus Schreber, 1781; monachus Rafinesque, 1818; noveboracensis Erxleben, 1777; quebecensis Yourans, 1930; rubellus Palisot de Beauvois, 1796; rubra Ord, 1815; rufus Wardern, 1820; tesselatus Rafinesque, 1818.	USA, New York.	E North America, Bermuda.	Not listed.	Least Concern	Subgenus Lasiurus , borealis species group. Does not include blossevillii , frantzii , teliotis , and varius ; see Schmidly and Hendricks (1984), Baker et al. (1988 a ), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988 a ) but might include minor . Does not include pfeifferi ; see Morales andBickham (1995). See Shump and Shump (1982 a ) but note that they included blossevillii and its synonyms in borealis .	Lasiurus borealis	1005575	23	Eastern Red Bat	Red Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	Vespertilionidae	VESPERTILIONINAE	LASIURINI	Lasiurus	Lasiurus	borealis	P. L. S. Müller	1776	1						New York, USA.			borealis (P. L. S. Müller, 1776)|noveboracensis (Erxleben, 1777)|lasiurus (von Schreber, 1781)|rubellus (Palisot de Beauvois, 1796)|rubra (Ord, 1815)|monachus (Rafinesque, 1818)|tesselatus (Rafinesque, 1818)|rufus (Warden, 1820)|funebris Fitzinger, 1870|quebecensis (Yourans, 1930)	NA	NA			USA(ND,SD,MN,WI,MI,NE,CO,KS,OK,TX,IA,MO,AR,LA,IL,IN,OH,KY,TN,MS,AL,GA,FL,SC,NC,VA,WV,DC,MD,DE,NJ,PA,NY,CT,RI,MA,NH,VT,ME)	Canada|United States|Mexico	North America	Nearctic	LC	0	0	0	Lasiurus_borealis	0	sciname match	Lasiurus_borealis	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	Lasiurus_borealis	1005575	23	Eastern Red Bat	Red Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	Chiroptera	Yangochiroptera	NA	NA	Vespertilionoidea	Vespertilionidae	Vespertilioninae	Lasiurini	Lasiurus	Lasiurus	borealis	P. L. S. Müller	1	Vespertilio borealis	Müller, P.L.S. 1776. Des Ritters Carl von Linne' vollständigen Natursystems Supplements- und Register-Band über alle sechs Theile oder Classen des Thierreichs. Gabriel Nicolaus Raspe, Nuremberg, 384 pp.	https://www.biodiversitylibrary.org/page/51217679				New York, USA.			NA	NA			USA(ND,SD,MN,WI,MI,NE,CO,KS,OK,TX,IA,MO,AR,LA,IL,IN,OH,KY,TN,MS,AL,GA,FL,SC,NC,VA,WV,DC,MD,DE,NJ,PA,NY,CT,RI,MA,NH,VT,ME)	Canada|United States|Mexico	North America	Nearctic	LC	0	0	0	Lasiurus_borealis	0	sciname match	Lasiurus_borealis	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	Lasiurus	Lasiurus	borealis	M&uuml;ller	1776	1	Linn&eacute;'s Vollstand. Natursystem, Suppl.	p. 20	Eastern Red Bat	funebris Fitzinger, 1870; lasiurus Schreber, 1781; monachus Rafinesque, 1818; noveboracensis Erxleben, 1777; quebecensis Yourans, 1930; rubellus Palisot de Beauvois, 1796; rubra Ord, 1815; rufus Wardern, 1820; tesselatus Rafinesque, 1818.	USA, New York.	E North America, Bermuda.	<a href='https://cites.org/eng/app/appendices.php' target='_blank'>Not Listed</a>	<a href='https://www.iucnredlist.org/species/11347/22121017/' target='_blank'>Least Concern</a>	Subgenus Lasiurus, borealis species group. Does not include blossevillii, frantzii, teliotis, andvarius; see Schmidly and Hendricks (1984), Baker et al. (1988a), and Morales and Bickham (1995). Does not include degelidus (Baker et al., 1988a) but might include minor. Does not include pfeifferi; see Morales andBickham (1995). See Shump and Shump (1982a) but note that they included blossevillii and its synonyms in borealis.		Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505	NA	Lasiurus borealis; Lasiurus borealis; Lasiurus borealis; Lasiurus borealis; Lasiurus borealis; Lasiurus borealis; funebris; lasiurus; monachus; noveboracensis; quebecensis; rubellus; rubra; rufus; tesselatus; funebris; lasiurus; monachus; noveboracensis; quebecensis; rubellus; rubra; rufus; tesselatus; borealis; noveboracensis; lasiurus; rubellus; rubra; monachus; tesselatus; rufus; funebris; quebecensis; Lasiure boréal; Rote Haarschwanzfledermaus; Lasiuroboreal; Red Bat; Eastern Red Bat; Red Bat; Eastern Red Bat; Eastern Red Bat; L. borealis