Mesembrinella anomala

Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 138

Key to species of the M. anomala species-group

[Males only, adapted from Wolff et al. (2014).]

1 T5 about twice as long as T4 ( Fig. 496); fore femur brown; ac usually 0:1, rarely 0:0; epandrium with an anteroventral extension ( Fig. 99); epiphallus long, slender and sharply curved backward ( Fig. 189); [known from Venezuela; Bonatto (2001) also listed it from Ecuador; Marinho et al. (2017) also listed it from Bolivia]...................................... M. anomala

- T5 about 1.5x as long T4; fore femur orange with dark apices dorsally; ac 0:0; epandrium without an anteroventral extension ( Wolff et al. 2014: fig. 22); epiphallus short, with only a slight curve ( Wolff et al. 2014: fig. 20); [known only from Colombia]......................................................................................... M. andina