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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L458 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus Eptesicus velatus Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus Histiotus velatus [HMW] Plecotus velatus 1. Geoffroy Saint-Hilaire, 1824 , Curitiba, Parana , Brazil . Taxonomic status of Histiotus velatus is somewhat uncertain; in the past, more than one form seemed to exist in its wide distribution. Taxonomic revision is needed. Monotypic.; [batnames2022] Subgenus Histiotus .; [MDD2022] has been included under Eptesicus, but the genus Histiotus is tentatively retained here pending a full revision; [batnames2023] None.; [MDD2023] has been included under Eptesicus, but the genus Histiotus is tentatively retained here pending a full revision; [batnames2025_1.7] None. miotis. miotis velatus velatus - miotis velatus, euryotis, miotis velatus velatus - miotis velatus, euryotis, miotis velatus, euryotis, miotis velatus velatus - miotis velatus (I. Geoffroy Saint-Hilaire, 1824)|euryotis (Temminck, 1840) [not used as valid]|miotis O. Thomas, 1916 Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp. Brazil 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. Histiotus velatus Brazil, Parana, Curitiba. I. Geoffroy 1824 Ann. Sei. Nat. Zool., 3:446. Distribution: Confined to eastern Brazil and eastern Paraguay. 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 Brazil, Paraguay 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. I. Geoffroy 1824 Ann. Sci. Nat. Zool., 3:446. E Brazil, Paraguay. Brazil, Parana, Curitiba. I. GEOFFROY 1824 Ears more or less triangular. Connecting band well developed. Skull relatively narrow. Forearm length, 45-49 mm. Distribution: Confined to eastern Brazil and eastern Paraguay. No subspecies currently recognized. 122 species H. velatus I. GEOFFROY 1824 Histiotus genus Histiotus velatus Ears more or less triangular. Connecting band well developed. Skull relatively narrow. Forearm length, 45-49 mm. No subspecies currently recognized. 3. H. velatus (I. GEOFFROY 1824). 3 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 Vespertilionini Histiotus velatus Histiotus velatus I. Geoffroy y 1824 Ann. Sci. Nat. Zool. 3 446 Tropical Big-eared Brown Bat Brazil, Parana, Curitiba. E Brazil, Bolivia, Paraguay, NW Argentina IUCN 2003 and IUCN/SSC Action Plan (2001) – Lower Risk (lc). miotis Thomas, 1916. 4C3D87E8FFA86A17FF829E7B16E6BE27 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 841 zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/4C/3D/87/4C3D87E8FFA86A17FF829E7B16E6BE27.xml Histiotus velatus Vespertilionidae Histiotus velatus 1824 Sérotine voilée @fr | Tropische Grof Rohrfledermaus @de | Histiotus tropical @es Plecotus velatus 1. Geoffroy Saint-Hilaire, 1824 , Curitiba, Parana , Brazil . Taxonomic status of Histiotus velatus is somewhat uncertain; in the past, more than one form seemed to exist in its wide distribution. Taxonomic revision is needed. Monotypic. Peru , Bolivia , C & S Brazil , S Paraguay , and NE Argentina . Head-body 58-2-70-8 mm, tail 46-60 mm, ear 24-3 33-5 mm, hindfoot 6-11 mm, forearm 42-50 mm; weight 9-17 g. Tibia lengths are 18-8-20-2 mm. Dorsal hairs of the Tropical Big-eared Brown Bat are slightly bicolored, with blackish brown bases and lighter cinnamon-brown tips; ventral hairs have dark brown bases and grayish to dark chestnut tips. Ears are very large, triangular, brown to dark brown, and connected by well-developed membrane (c. 3 mm high) across forehead; tragus is long, broad, and rounded at tip. Membranes are naked and brown to dark brown. Calcar is well developed. Skull is robust, narrower than observed in congeners; sagittal and lambdoidal crests are practically absent; zygomatic arches have strongly developed postorbital process ofjugal; palate is slightly concave centrally and narrower than in congeners; caudal spine is well developed; and tympanic bullae are large and rounded. Wide variety of habitats including moist forests, savannas in grasslands, evergreen forests, semideciduous forests, open and shrub savannas, plantations, and urban areas from sea level up to elevations of ¢. 2400 m . Tropical Big-eared Brown Bats are insectivorous. In south-eastern Brazil , a small group preyed on flying winged termites (Isoptera). Feces contained fragments of Lepidoptera , Hymenoptera , Coleoptera , and Araneae ( Pholcidae and Araneoidea). In southern Brazil , pregnant Tropical Big-eared Brown Bats were captured in October-December, one female captured in October had two embryos, and young were observed in late October-November and early December. Available data suggest that parturition is synchronized and takes place once a year in spring. Tropical Big-eared Brown Bats are nocturnal. Individuals were observed leaving roosts at sunset, and captures occurred during the first two hours after sunset. Roosts have been found in buildings, such as inside of churches and roofs. Study of a colony in southern Brazil showed that individuals were “asleep” ¢.75% of the time and “alert” ¢.17% of the time during the day; sometimes all individuals in the colony were sleeping. Number of individuals in the colony changed throughout the year: up to 70 individuals in spring and summer and down to 10 individuals in autumn and winter. Movements are closely related to oscillations in temperature and photoperiod. Echolocation calls sweep down from 25 kHz to 15 kHz, with durations of 5-8 milliseconds. Colonies of Tropical Big-eared Brown Bats can be 6-12 individuals up to 70 individuals. They share roosts with Pallas’s Mastiff Bats (Molossus molossus) and Silver-tipped Myotis ( Myotis albescens ). Classified as Data Deficient on The IUCN Red List. The Tropical Big-eared Brown Bat occurs in protected areas. Deforestation might be a threat, but additional research is needed to clarify it conservation status. Barquez et al. (1999) | Bianconi & Pedro (2017) | Feijé, Rocha & Althoff (2015) | Fenton, Whitaker et al. (1999) | Gonzalez & Barquez (2016¢) | Handley & Gardner (2008) | Lopez-Gonzélez (2004) | Nora & Chaves (2006) | Simmons (2005) | Thomas (1916b) | Vizotto & Taddei (1973) | Welter (2009) https://zenodo.org/record/6398170/files/figure.png 171. Tropical Big-eared Brown Bat Histiotus velatus French: Sérotine voilée / German: Tropische GrofRohrfledermaus / Spanish: Histiotus tropical Taxonomy. Plecotus velatus 1. Geoffroy Saint-Hilaire, 1824 , Curitiba, Parana , Brazil . Taxonomic status of Histiotus velatus is somewhat uncertain; in the past, more than one form seemed to exist in its wide distribution. Taxonomic revision is needed. Monotypic. Distribution. Peru , Bolivia , C & S Brazil , S Paraguay , and NE Argentina . Descriptive notes. Head-body 58-2-70-8 mm, tail 46-60 mm, ear 24-3 33-5 mm, hindfoot 6-11 mm, forearm 42-50 mm; weight 9-17 g. Tibia lengths are 18-8-20-2 mm. Dorsal hairs of the Tropical Big-eared Brown Bat are slightly bicolored, with blackish brown bases and lighter cinnamon-brown tips; ventral hairs have dark brown bases and grayish to dark chestnut tips. Ears are very large, triangular, brown to dark brown, and connected by well-developed membrane (c. 3 mm high) across forehead; tragus is long, broad, and rounded at tip. Membranes are naked and brown to dark brown. Calcar is well developed. Skull is robust, narrower than observed in congeners; sagittal and lambdoidal crests are practically absent; zygomatic arches have strongly developed postorbital process ofjugal; palate is slightly concave centrally and narrower than in congeners; caudal spine is well developed; and tympanic bullae are large and rounded. Habitat. Wide variety of habitats including moist forests, savannas in grasslands, evergreen forests, semideciduous forests, open and shrub savannas, plantations, and urban areas from sea level up to elevations of ¢. 2400 m . Food and Feeding. Tropical Big-eared Brown Bats are insectivorous. In south-eastern Brazil , a small group preyed on flying winged termites (Isoptera). Feces contained fragments of Lepidoptera , Hymenoptera , Coleoptera , and Araneae ( Pholcidae and Araneoidea). Breeding. In southern Brazil , pregnant Tropical Big-eared Brown Bats were captured in October-December, one female captured in October had two embryos, and young were observed in late October-November and early December. Available data suggest that parturition is synchronized and takes place once a year in spring. Activity patterns. Tropical Big-eared Brown Bats are nocturnal. Individuals were observed leaving roosts at sunset, and captures occurred during the first two hours after sunset. Roosts have been found in buildings, such as inside of churches and roofs. Study of a colony in southern Brazil showed that individuals were “asleep” ¢.75% of the time and “alert” ¢.17% of the time during the day; sometimes all individuals in the colony were sleeping. Number of individuals in the colony changed throughout the year: up to 70 individuals in spring and summer and down to 10 individuals in autumn and winter. Movements are closely related to oscillations in temperature and photoperiod. Echolocation calls sweep down from 25 kHz to 15 kHz, with durations of 5-8 milliseconds. Movements, Home range and Social organization. Colonies of Tropical Big-eared Brown Bats can be 6-12 individuals up to 70 individuals. They share roosts with Pallas’s Mastiff Bats (Molossus molossus) and Silver-tipped Myotis ( Myotis albescens ). Status and Conservation. Classified as Data Deficient on The IUCN Red List. The Tropical Big-eared Brown Bat occurs in protected areas. Deforestation might be a threat, but additional research is needed to clarify it conservation status. Bibliography. Barquez et al. (1999), Bianconi & Pedro (2017), Feijé, Rocha & Althoff (2015), Fenton, Whitaker et al. (1999), Gonzalez & Barquez (2016¢), Handley & Gardner (2008), Lopez-Gonzélez (2004), Nora & Chaves (2006), Simmons (2005), Thomas (1916b), Vizotto & Taddei (1973), Welter (2009). Simmons, N.B. and A.L. Cirranello. 2022B. Bat Species of the World: A taxonomic and geographic database. Accessed on 10/11/2022. Vespertilionidae Eptesicus velatus Eptesicus Histiotus velatus I. Geoffroy 1824 1 Ann. Sci. Nat. Zool. 0.4347 Tropical Big-eared Brown Bat miotis Thomas, 1916. Brazil, Parana, Curitiba. E Brazil, Bolivia, Paraguay, NW Argentina Not listed. Data Deficient as Histiotus velatus Subgenus Histiotus . Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023 Histiotus velatus 23 Tropical Big-eared Brown Bat Tropical Leaf-eared Bat Theria Placentalia Boreoeutheria Laurasiatheria CHIROPTERA VESPERTILIONIFORMES NA NA VESPERTILIONOIDEA VESPERTILIONIDAE VESPERTILIONINAE EPTESICINI Histiotus NA velatus I. Geoffroy Saint-Hilaire 1824 1 Plecotus_velatus Geoffroy Saint-Hilaire, I. (1824). Sur les Vespertilions du Brésil. Annales des sciences naturelles, 3, 446. https://www.biodiversitylibrary.org/item/50402#page/452/mode/1up MNHN 1997-1828 Curitiba, Paraná, Brazil. velatus (I. Geoffroy Saint-Hilaire, 1824)|euryotis (Temminck, 1840) [nomen nudum]|miotis O. Thomas, 1916 has been included under Eptesicus, but the genus Histiotus is tentatively retained here pending a full revision NA Peru|Bolivia|Brazil|Paraguay|Argentina South America Neotropic DD 0 0 0 Histiotus_velatus 0 sciname match Histiotus_velatus 0 IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022]. 10203 Histiotus velatus ANIMALIA CHORDATA MAMMALIA CHIROPTERA VESPERTILIONIDAE Histiotus velatus (I. Geoffroy, 1824) 20000000 Histiotus velatus Data Deficient 2016 2016-06-08 00:00:00 UTC 3.1 English Listed as Data Deficient in view of continuing problems with its taxonomy as well as absence of recent information on its extent of occurrence, status and ecological requirements. It needs taxonomic revision because it may be two species. This species is insectivorous, but there is very little information about this bat. It is found in forests and buildings (Gonzalez pers. comm.). The species could be threatened by deforestation. There is no information about population trend, only that in Argentina it is scarce and in Brazil it is abundant. Unknown The species is found in east Brazil, Bolivia, and northwest Argentina (Simmons 2005), also in Paraguay (Lopez-Gonzalez 2004) and Peru (Handley and Gardner 2008). Presence in Uruguay is unconfirmed (Handley and Gardner 2008). Terrestrial Conservation actions for this species are unknown. 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 Histiotus velatus I. Geoffroy Saint-Hilaire 1824 0 Ann. Sci. Nat. Zool. 0.434722 Tropical Big-eared Brown Bat miotis Thomas, 1916. Brazil, Parana, Curitiba. E Brazil, Bolivia, Paraguay, NW Argentina Not listed. Data Deficient None. Histiotus velatus 1005560 23 Tropical Big-eared Brown Bat Tropical Leaf-eared Bat Theria Placentalia Boreoeutheria Laurasiatheria CHIROPTERA VESPERTILIONIFORMES NA NA VESPERTILIONOIDEA Vespertilionidae VESPERTILIONINAE EPTESICINI Histiotus NA velatus I. Geoffroy Saint-Hilaire 1824 1 Plecotus_velatus Geoffroy Saint-Hilaire, I. (1824). Sur les Vespertilions du Brésil. Annales des sciences naturelles, 3, 446. https://www.biodiversitylibrary.org/item/50402#page/452/mode/1up MNHN 1997-1828 Curitiba, Paraná, Brazil. velatus (I. Geoffroy Saint-Hilaire, 1824)|euryotis (Temminck, 1840) [nomen nudum]|miotis O. Thomas, 1916 has been included under Eptesicus, but the genus Histiotus is tentatively retained here pending a full revision NA Peru|Bolivia|Brazil|Paraguay|Argentina South America Neotropic DD 0 0 0 Histiotus_velatus 0 sciname match Histiotus_velatus 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 Histiotus_velatus 1005560 23 Tropical Big-eared Brown Bat Tropical Leaf-eared Bat Theria Placentalia Boreoeutheria Laurasiatheria Chiroptera Yangochiroptera NA NA Vespertilionoidea Vespertilionidae Vespertilioninae Nycticeiini Histiotus NA velatus I. Geoffroy Saint-Hilaire 1 Plecotus velatus Geoffroy Saint-Hilaire, I. 1824. Sur les Vespertilions du Brésil. Annales des sciences naturelles 3:440-447. https://www.biodiversitylibrary.org/page/5813767 MNHN-ZM-MO-1997-1828 holotype http://coldb.mnhn.fr/catalognumber/mnhn/zm/mo-1997-1828 Curitiba, Paraná, Brazil. NA NA Peru|Bolivia|Brazil|Paraguay|Argentina South America Neotropic DD 0 0 0 Histiotus_velatus 0 sciname match Histiotus_velatus 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 Histiotus velatus I. Geoffroy Saint-Hilaire 1824 1 Ann. Sci. Nat. Zool. 0.434722 Tropical Big-eared Brown Bat miotis Thomas, 1916. Brazil, Parana, Curitiba E Brazil, Bolivia, Paraguay, NW Argentina Not Listed Data Deficient None. Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505 NA Histiotus velatus; Histiotus velatus; Eptesicus velatus; Histiotus velatus; Histiotus velatus; Histiotus velatus; miotis; miotis; velatus; euryotis; miotis; Sérotine voilée; Tropische Grof Rohrfledermaus; Histiotus tropical; Tropical Big-eared Brown Bat; Tropical Leaf-eared Bat; Tropical Big-eared Brown Bat; Tropical Big-eared Brown Bat; H. velatus