Myotis izecksohni Moratelli, Peracchi, Dias & Oliveira, 2011

Novaes, Roberto Leonan M., Claudio, Vinicius C., Diaz, M. Monica, Wilson, Don E., Weksler, Marcelo & Moratelli, Ricardo, 2022, Argentinean Myotis (Chiroptera, Vespertilionidae), including the description of a new species from the Yungas, Vertebrate Zoology 72, pp. 1187-1216 : 1187

Myotis izecksohni Moratelli, Peracchi, Dias & Oliveira, 2011

Comments.

Among all Myotis specimens from Argentina analyzed, only one voucher (CML 10200) was identified as M. izecksohni . It is a medium-sized species (FA 37.8 mm, body mass 4 g; Table 7 , Fig. 15 ). Ears comparatively short (length 12.1 mm). Silky, moderately long fur (LDH 6-8 mm, LVH 5-6 mm). Dorsal fur slightly bicolor, with blackish bases (2/3 hair length) and Bone Brown tips (1/3 hair length). Ventral fur strongly bicolored, with blackish bases (2/3 hair length) and Buffy Brown tips (1/3 hair length). Membranes and ears are Mummy Brown. Legs and dorsal surface of uropatagium naked. A fringe of hairs along the trailing edge of the uropatagium is absent. The plagiopatagium attached to feet on the level of the base of the toes by a wide band of membrane. Skull delicate and small in size (GLS 14.6 mm, BCB 6.8 mm); the rostrum comparatively elongated; mastoid process weakly developed. The P3 is smaller than P2 and usually aligned to the toothrow. Sagittal crest and lambdoidal crests very low. Parietal straight or slightly inclined forward; occipital region is rounded and projected beyond the posterior limit of the occipital condyles; braincase elongated in dorsal view; the postorbital and interorbital constrictions comparatively broad.

This species occurs from southeastern Brazil to northern Argentina, in dense ombrophilous forests ( Moratelli et al. 2019a). The only record in Argentina is from humid and dense forests from Misiones (210 m) in the Alto Paraná Atlantic Forest ( Barquez et al. 2017).

Figures

Figure 15. Adult female of Myotis izecksohni (CML 10200) from Misiones, Argentina.