Apotropina, Hendel, 1907

Ramos-Pastrana, Yardany, Córdoba-Suarez, Eric & Riccardi, Paula Raile, 2024, Three new species of Apotropina Hendel, 1907 (Diptera: Chloropidae) of the Colombian Andean-Amazon cloud forest, Zootaxa 5512 (3), pp. 435-444 : 436

Identification key to the Colombian species of Apotropina :

1. Scutum and scutellum shiny; ocellar triangle reaching ~ ½ length of frons; body length ~ 1.3 mm; wing fumose; fore coxa yellow; gena not higher than half postpedicel height..................................... A. infumata ( Becker, 1916)

- Scutum and scutellum pruinose; ocellar triangle reaching ~ ⅔ length of frons; body length 2–3.5 mm; other combination of characters........................................................................................... 2

2. Fore coxa dark; tibial organ dark gray; wing hyaline; hind tibia with apical spur straight and shorter than tibial width; surstylus narrow with apex brownish................................................................ A. similis sp. nov.

- Fore coxa yellow; other combination of characters........................................................... 3

3. Wing fumose, gena ~ ⅓ height of postpedicel and entirely yellow; hind tibial spur indistinct; tibial organ brown-yellowish; male cercus with setae longer than surstylus, surstylus wide with yellow apex.......................... A. longicerci sp. nov.

- Wing hyaline, gena less than ⅓ height of postpedicel and posteriorly dark, hind tibia with apical spur straight and shorter than tibia width; male cercus with setae shorter than surstylus, surstylus narrow with brownish apex......... A. ruidosa sp. nov.