Molossidae Author Don E. Wilson Author Russell A. Mittermeier text 2019 2019-10-31 Lynx Edicions Barcelona Handbook of the Mammals of the World – Volume 9 Bats 598 672 book chapter http://doi.org/10.5281/zenodo.6418279 bc3766a8-d834-42d8-9b39-0612d00293ca 978-84-16728-19-0 6418279 36. Northern Dwarf Bonneted Bat Eumops nanus French: Eumope nain / German: Kleine Bulldogfledermaus / Spanish: Eumops nano Other common names: Dwarf Bonneted Bat Taxonomy. Promops nanus G. S. Miller, 1900 , “Bogava [= Bugaba District], Chiriqui [Province], Panama (alt. 250 m .).” Eumops nanus was previously considered a subspecies of E. bonariensis based on morphological and molecular differences. Monotypic. Distribution. Patchily from S Mexico ( Veracruz and Oaxaca ) SE through Central America to extreme N Colombia , NW Venezuela , S Guyana , and Peru ; also on Cozumel 1. Descriptive notes. Head—body 49-68 mm, tail 28-47 mm, ear 12-19 mm, hindfoot 6-11 mm, forearm 39-48 mm; weight 7-13 g. See general characteristics of the genus under the Black Bonneted Bat ( E. auripendulus ). The Northern Dwarf Bonneted Bat is the smallest species of Eumopsin overall size. Dorsal furis grayish brown to dark brown, with c. 5mm long hairs being whitish at bases. Ventral fur is slightly paler and frosted on tips. Lips are wrinkled but less than in Wagner’s Bonneted Bat ( E. glaucinus ). Ears extendjust beyond nose tip when laid forward. Wing attaches near end of tibia. Upper incisors converge to each other and are not in contact with canines. Habitat. [Lowland tropical humid forests, thorn forests, and secondary forests. Food and Feeding. Stomach contents of Northern Dwarf Bonneted Bats from Mexico contained 55% moths, 27% beetles, and 15% bugs (by volume). Breeding. In Mexico , Northern Dwarf Bonneted Bats were pregnant from late March to late June, with parturition occurring in midto late June. Lactating females were reported from early June to late July, with lactation lasting up to two months. Reproductively inactive females occurred in March-April, June-July, and September-—November. Subadults were found in October. Males had enlarged and secreting throat glands in May-June. Activity patterns. Primary activity of Northern Dwarf Bonneted Bats occurs during first two hours after sunset, with secondary activity before sunrise. They roost in tree holes and under roof tiles of houses in colonies of ¢.20 individuals in Mexico . These bats fly near water bodies, including human-made ponds and swimming pools. Movements, Home range and Social organization. No information. Status and Conservation. Classified as [Least Concern on The IUCN Red Lust. Bibliography. Bowles et al. (1990), Eger (2008), Handley (1976), Hutterer et al. (1995), Miller (1900a), Reid (1997), Torres-Morales et al. (2014).