Ctenodontina Enderlein, 1914 (Diptera, Asilidae, Asilinae): First Record for Brazil and Description of a New Species

Ctenodontina Enderlein is reported for the first time in Brazil. A new species Ctenodontina nairae sp. nov. is described from the Amazonas state, Brazil. The habitus, wing, and structures of terminalia are described, and illustrated and a key to species is presented. 1. Introduction Ctenodontina Enderlein is characterized by the epandrium narrowed apically (usually terminating in a finger-like lobe) and distinctly shorter than sternite 8 [1, 2]. In the female, the ovipositor with apical ventral comb of spines, and with tergite 8 broadly expanded laterally, densely setose and cupped beneath, completely obscuring sternite 8 in profile [1, 2]. Ctenodontina is a Neotropical genus (Figure 1), comprising 4 species [3]: C. martini. Fisher [4]. This species was described by Fisher in Fisher and Hespenheide, 1992 [1] (Mexico and Guatemala), C. maya Carrera and d'Andretta [5] (Peru), C. mochica Lamas [6] (Peru), and C. pectinatipes Enderlein [7] (Colombia). Furthermore, Artigas and Papavero [8] illustrated a male hind femur of Ctenodontina sp. from Argentina, Jujuy, La Legua (Figure 2(e)), but they did not described the specimen. The same illustrations used by Artigas and Papavero [8] were used by Papavero et al. [9]. Figure 1: Map of distribution of Ctenodontina species (blue square Ctenodontina martini Fisher; black triangle Ctenodontina pectinatipes Enderlein; black cross Ctenodontina nairae Vieira sp. nov.; red circle, Ctenodontina mochica Lamas; green triangle, Ctenodontina maya Carrera and d'Andretta [ 5]). Figure 2: was built with (a) male terminalia in lateral view of Ctenodontina martini Fisher (modified from Fisher [ 8]); (b) male hind femur of Ctenodontina maya Carrera and d’Andretta (modified from Papavero et al. [ 9]); (c) male hind femur of Ctenodontina mochica Lamas (modified from Lamas [ 6]); (d) male hind femur of Ctenodontina pectinatipes Enderlein (modified from Enderlein [ 7]); (e) male hind femur of Ctenodontina sp. (modified from Papavero et al. [ 9]); (f) male hind femur of Ctenodontina nairae Vieira sp. nov. In this work a new species for Ctenodontina from Amazonas state, Brazil, is described and illustrated and a key for all species presently in Ctenodontina is provided. 2. Material and Methods This study is based on the examination of specimens housed in the following Brazilian institutions: CZPB—Cole？？o Zoológica Prof. Paulo Bührnheim, Departamento de Biologia, Universidade Federal do Amazonas, Manaus, Brazil, and Instituto Nacional de Pesquisas da Amaz？nia (INPA), Amazonas, Manaus, Brazil. Morphological terminology follows Cumming and