Myotis ruber (É. Geoffroy, 1806)

Cláudio, Vinícius C., Barbosa, Gedimar P., Rocha, Vlamir J. & Rassy, Ricardo Moratelli Fabrício B., 2020, 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, Zoologia (e 36514) 37, pp. 1-32 : 26

Myotis ruber (É. Geoffroy, 1806)

Fig. 41

Taxonomy. Myotis ruber can be distinguished from their congeners by the general fur coloration, which is bright cinnamon red on the dorsum and yellowish on venter, and higher sagittal and lambdoidal crests. Myotis simus and M. riparius can present similar coloration, but the attachment of wing membranes on feet and the fur length readily distinguish M. ruber from M. simus ; and the larger forearm length and higher sagittal crests distinguish M. ruber from M. riparius ( Thomas 1902, López-González et al. 2001, Moratelli et al. 2011b). Some specimens of M. ruber have reddish nails. Specimens from PECB (ZSP 047, 054; see Table 10 for measurements) have bicolored dorsal fur, with blackish brown basis and reddish tips, averaging 6 mm between shoulders. The ventral fur is lighter than the dorsal and is bicolored, with dark brown basis and reddish tips. The fringe of hairs on the edge of the uropatagium is absent, the wing membrane is attached to the feet, face is reddish and ears dark brown, and the feet nails are reddish.

Distribution. In Brazil, the species is recorded in the Atlantic Forest and Cerrado, on the states of Bahia, Pernambuco, Minas Gerais, Paraná, Rio Grande do Sul, Santa Catarina, São Paulo, Rio de Janeiro, and Espírito Santo ( Tavares et al. 2008, Reis et al. 2017). In São Paulo state, there are records on the central and east regions, mostly on the coastal Atlantic Forest ( Garbino 2016).

Field observations. We captured two adult males, both in secondary dense forest. One was taken in a ground-level mist-net set along a river in sampling site M29, and another was taken in a building roof, in sampling site S2 (Appendix 1), where we also captured 17 Molossus molossus , 13 Histiotus velatus and two Myotis albescens . Captures occurred in May and August.