A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea) Whitworth, Terry L. Yusseff-Vanegas, Sohath Zootaxa 2019 2019-08-26 4659 1 1 146 Wiedemann 1830 [151,486,1701,1728] Insecta Calliphoridae Mesembrinella Animalia Diptera 63 64 Arthropoda species aeneiventris   Recognition.The primary shared character state in the  M. aeneiventrisspecies-group is disc of T5 with a horizontal row of stout setae ( Fig. 8); remainder of T5 usually with short, fine setae and setulae. In most species, the male has surstylus straight or only slightly curved posteriorly (as in Fig. 45), whereas in the  M. bicolorspecies-group the surstylus typically has a distinctive curve posteriorly (  M. cordillera,  M. vogelsangiand  M. zurquiensisin the  M. aeneiventrisspecies-group have surstylus with a more distinct curve directed posteriorly). The area of the phallus anterior to the hypophallic lobes tends to be narrowed ( Fig. 146), similar to  Laneella.