The bat fauna (Mammalia: Chiroptera) of Carlos Botelho State Park, Atlantic Forest of Southeastern Brazil, including new distribution records for the state of São Paulo Author Cláudio, Vinícius C. Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos. 13565 - 905 São Carlos, SP, Brazil. & Fundação Parque Zoológico de São Paulo. 04301 - 905 São Paulo, SP, Brazil. & Instituto de Biologia, Programa de Pós-Graduação em Biodiversidade e Biologia Evolutiva, Universidade Federal do Author Barbosa, Gedimar P. Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos. 13565 - 905 São Carlos, SP, Brazil. & Fundação Parque Zoológico de São Paulo. 04301 - 905 São Paulo, SP, Brazil. Author Rocha, Vlamir J. Centro de Ciências Agrárias, Universidade Federal de São Carlos. 13600 - 970 Araras, SP, Brazil. Author Rassy, Ricardo Moratelli Fabrício B. text Zoologia 2020 e 36514 2020-09-17 37 1 32 http://dx.doi.org/10.3897/zoologia.37.e36514 journal article 10.3897/zoologia.37.e36514 1984-4689 13175881 E03C0430-68C6-449B-A0AF-9FB0968FB38C Desmodus rotundus (É. Geoffroy, 1810) Fig. 7 Taxonomy. Desmodus rotundus is the only species in Desmodus Wied-Newied, 1826 . Desmodontinae also includes other two species, Diaemus youngii (Jentink, 1893) and Diphylla ecaudata Spix, 1823 ( Kwon and Gardner 2008 ), all occurring in Brazil . Desmodus rotundus can be distinguished from the other two by the presence of an elongated thumb with two rounded basal pads ( D. youngii also presents an elongated thumb, but only one pad, while D. ecaudata presents a small thumb without pads). Desmodus rotundus also differs from D. youngii by the presence of a tiny calcar, which is absent in D. youngii ( Kwon and Gardner 2008 , López-Baucells et al. 2016 ). Specimens from PECB (ZSP 006, 031; see Table 3 for measurements) have dark brown dorsal fur, with whitish basis and dark brown tips, ventral fur bicolored, with a gray basis and whitish/silver tips, elongated thumb with two basal pads. Distribution. In Brazil the species is recorded in all biomes and states ( Tavares et al. 2008 , Reis et al. 2017 ). In São Paulo , the species is widely distributed, occurring in all the vegetational formations, and also in urban areas ( Garbino 2016 ). Field observations. We captured 18 individuals ( 5 males and 13 females ) of D. rotundus , of which 16 were taken in February, March, April, June, July, August and October in ground-level mist-nets in sampling sites M2, M14, M16, M18, M19, M23, M24, M25, M29, M34, M36 and M39, in different elevations and plant physiognomies; and two on June in a mist-net elevated 8 m in sampling site M33 (Appendix 1). Two lactating females were captured in June.