Glyphonycteris sylvestris, Thomas, 1896

Don E. Wilson & Russell A. Mittermeier, 2019, Phyllostomidae, Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions, pp. 444-583 : 539

publication ID

https://doi.org/ 10.5281/zenodo.6458594

DOI

https://doi.org/10.5281/zenodo.6727875

persistent identifier

https://treatment.plazi.org/id/03A687BC-FF86-FF86-13BD-FD81FDEDFAD6

treatment provided by

Plazi

scientific name

Glyphonycteris sylvestris
status

 

113. View Plate 40: Phyl

Tricolored Big-eared Bat

Glyphonycteris sylvestris View in CoL

French: Glyphonyctere sylvestre / German: Dreifarbige GroRohrblattnase / Spanish: Glifonicterio silvestre

Other common names: Brown Small-eared Bat, Little Graybeard Bat, Tricolored Bat

Taxonomy. Glyphonycteris sylvestris Thomas, 1896 View in CoL ,

“Imravalles [= Hacienda Miravalles, Guanacaste], Costa Rica.”

Glyphonycteris sylvestris was included in Micronycteris . Monotypic.

Distribution. Patchily distributed from C Mexico (Nayarit and Veracruz) through Central America ( Honduras, Nicaragua, Costa Rica, and Panama) into South America, including Colombia, Venezuela, the Guianas, Brazil, E Ecuador, and E Peru; also on Trinidad 1. View Figure

Descriptive notes. Head-body 48-56 mm, tail 9-12 mm, ear 17-22 mm, hindfoot 11-12 mm, forearm 38-44 mm; weight 7-11 g. The Tricolored Big-eared Bat is similar to Davies’s Big-eared Bat (G. davies) but smaller. Dorsal hair is tricolored. Ears are large, wide, and pointed. Dental formula is12/2, C1/1,P 2/3 M 3/3 (x2) = 34.

Habitat. Primary and little-disturbed humid tropical and subtropical forests at elevations of 15-1300 m. The Tricolored Big-eared Bat inhabits terra firma and seasonally inundated forest.

Food and Feeding. The Tricolored Big-eared Bat is a gleaning insectivore and apparently eats some fruits.

Breeding. Reproductive period of the Tricolored Big-eared Bat apparently begins in rainy seasons. In Mexico, none of 13 specimens captured in December were sexually active; females were not pregnant, and testes of the males were small.

Activity patterns. The Tricolored Big-eared Bat is nocturnal. It roosts in caves, tunnels, and hollow trees.

Movements, Home range and Social organization. The Tricolored Big-eared Bat forms colonies. In Trinidad Island, a colony of 75 individuals was found, sharing space with the Greater Sac-Winged Bat (Saccopteyx bilineata). In Mexico, a colony of 25 individuals was found in a cave, and in another cave, a single individual was found together with four Gray Sac-winged Bats ( Balantiopteryx plicata ).

Status and Conservation. Classified as Least Concern on The IUCN Red List. The Tricolored Big-eared Batis rare, patchily distributed, and poorly known. Apparently, its conservation status is stable in most of its distribution.

Bibliography. Felix et al. (2016), Goodwin & Greenhall (1961), Hall & Dalguest (1963), Linares (1987), Medina-Fitoria & Saldana (2012), Morales-Martinez & Suérez-Castro (2014), Simmons (1996), Tirira (2017), Tirira et al. (2016), Williams & Genoways (2008).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Chiroptera

Family

Phyllostomidae

Genus

Glyphonycteris

Loc

Glyphonycteris sylvestris

Don E. Wilson & Russell A. Mittermeier 2019
2019
Loc

Glyphonycteris sylvestris

Thomas 1896
1896
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