A new genus and species of vesper bat from West Africa, with notes on Hypsugo, Neoromicia, and Pipistrellus (Chiroptera: Vespertilionidae) Author Hutterer, Rainer Author Decher, Jan Author Monadjem, Ara Author Astrin, Jonas text Acta Chiropterologica 2019 2019-12-31 21 1 1 22 journal article 10.3161/15081109ACC2019.21.1.001 39e08df9-a9a6-423a-8af7-58e91e84dcf1 3752833 Parahypsugo crassulus ( Thomas, 1904 ) Broad-headed pipistrelle Pipistrellus crassulus Thomas, 1904: 206 . Pipistrellus ( Pipistrellus ) crassulus : Hill and Harrison, 1987: 242 , 272. Hypsugo crassulus : Heller et al ., 1994: 3 , 4, 5. Pipistrellus ( Vansonia ) crassulus : Koopman, 1994: 116 . Hypsugo eisentrauti : Volleth and Heller, 1994: 13 , 20, 26. Material examined SMF 79.441 ( Rwanda ), SMF 79.442 (DR Congo, Kivu region , Centre de Recherche en Sciences Naturelles , 850 m a.s.l. ); FMNH 167775- 776, male ( Gabon ) , FMNH 108168, male ( Sudan ), FMNH 83599, male ( Angola ), FMNH 165170-171, male ( Uganda ), FMNH 152767, male ( Kenya ), BMNH 1904.2.8.1 ( holotype ), SMF 79441-442 ( DR Congo ) . Comments The species occurs from Cameroon and Angola eastwards to Kenya ( Fahr, 2013 ). Chromosome number of a specimen from DR Congo was: 2n = 30, aFN = 56 ( Volleth et al ., 2001 ). This is the smallest species of the genus ( Tables 3 and 4 ).