Glauconycteris egeria, Thomas, 1913

Don E. Wilson & Russell A. Mittermeier, 2019, Vespertilionidae, Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions, pp. 716-981 : 832

149.

Bibundi Butterfly Bat

Glauconycteris egeria

French: Glauconyctére de Bibundi / German: Bibundi-Schmetterlingsfledermaus / Spanish: Glauconicterio de Bibundi

Other common names: Bibundi Bat

Taxonomy. Glauconycteris egeria Thomas, 1913 ,

“Bibundi,” Western Province, Cameroon.

A. Hassanin and colleagues in 2018 showed that G. egeria was not monophyletic, with part sister to G. poensis and part sister to G. alboguttata . Monotypic.

Distribution. Known only from four localities, including type locality and Buea in SW Cameroon, Dzanga-Sangha Special Reserve in SW Central African Republic, and Budongo Forest in W Uganda.

Descriptive notes. Head-body ¢.46-50 mm, tail 35-48 mm, ear 12-19 mm, forearm 37-39 mm; weight 5-5-7-5 g. Dorsal and ventral pelage are soft and dense, ranging from dark brown to almost black. Dorsal pelage is almost pure black in Uganda and sepia-brown in Cameroon. Conspicuous whitish dorsal flank-stripes are present. Ears are separated, subquadrangular in outline (rounded in other dark-winged Glauconycters), short for a vespertilionid but comparatively long and broad for a Glauconycteris , and dark brown, with conspicuously pale rim. Inner margin has long backward-pointing lobe at base, and outer margin is connected with rather small fleshy lobe on lower lip near corner of mouth. Eyes are very small. Wings and uropatagium are dark brown without reticulation. Tibia is short (16-18 mm) for Glauconycteris . Head is comparativelylarge and high-domed, and muzzle is short, broad, and flattish. Skull is small, and profile of forehead is concave compared with other Glauconycteris . I? is long and stronglybicuspid, with cusps equal in size. I” is minute. Lowerincisorsare tricuspid and not markedly crowded.

Habitat. Rainforest. In Uganda, recorded over a swamp in rainforest at ¢. 1200 m. In Dzanga-Sangha Forest Reserve, two adult females were mist-netted at the edge of a clearing in dense forest, and one male was caught on a road through the forest.

Food and Feeding. No information.

Breeding. No information.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Data Deficient on The IUCN Red List. The Bibundi Butterfly Bat is known only from a few individuals (c. 11 in collections).

Bibliography. Happold, M. (2013aw), Hassanin et al. (2018), Lunde et al. (2001).

Figures

144. Variegated Butterfly Bat (Glauconycteris variegata), 145. Machado’s Butterfly Bat (Glauconycteris machadoi), 146. Glen's Butterfly Bat (Glauconycteris gleni), 147. Pied Butterfly Bat (Glauconycteris superba), 148. Common Butterfly Bat (Glauconycteris argentata), 149. Bibundi Butterfly Bat (Glauconycteris egeria), 150. Abo Butterfly Bat (Glauconycteris poensts), 151. Striped Butterfly Bat (Glauconycteris alboguttata), 152. Beatrix’s Butterfly Bat (Glauconycteris beatrix), 153. Curry’s Butterfly Bat (Glauconycteris curryae), 154. Spotted Butterfly Bat (Glauconycteris humeralis), 155. Blackish Butterfly Bat (Glauconycteris atra), 156. Kenyan Butterfly Bat (Glauconycteris kenyacola), 157. Doria’s False Serotine (Hesperoptenus doriae), 158. Tickell’s False Serotine (Hesperoptenus tickelli), 159. Blanford’s False Serotine (Hesperoptenus blanfordi), 160. Large False Serotine (Hesperoptenus tomesi), 161. Gaskell’s False Serotine (Hesperoptenus gaskelli), 162. Great Evening Bat (Ia io), 163. Harlequin Bat (Scotomanes ornatus), 164. Ruppell’s Broad-nosed Bat (Scoteanax rueppellii), 165. Northern Broad-nosed Bat (Scotorepens sanborni), 166. Little Broad-nosed Bat (Scotorepens greyii), 167. Inland Broad-nosed Bat (Scotorepens balstoni), 168. Eastern Broad-nosed Bat (Scotorepens orion), 169. Silver-haired Bat (Lasionycteris noctivagans)

Distribution. Known only from four localities, including type locality and Buea in SW Cameroon , Dzanga-Sangha Special Reserve in SW Central African Republic , and Budongo Forest in W Uganda .