Paralimna, Loew

Dawah, Hassan A., Ahmad, Syed K., Abdullah, Mohammed A. & Zatwarnicki, Tadeusz, 2019, An overview of the Ephydridae (Diptera) of Saudi Arabia, Zootaxa 4711 (3), pp. 401-445 : 413

Key to species of subgenus Paralimna from the Saudi Arabia

1. Facial profile consists of a vertical face, without a distinct carina but with a protruding interfoveal region; frons and vertex horizontal, antennae inserted in line with the most dorsal region of eye......................... P. arabica Becker, 1910

- Facial profile consists of a convex face, usually with a distinct carina; frons and vertex convex, antennae inserted in line with the middle region of eye................................................................................ 2

2. Frontal bristle inserted lateral to the anterior fronto-orbital seta; wing transparent........... P. nigripes bona Cresson, 1933

- Frontal bristle situated only just posterior to anterior fronto-orbital, face strongly convex and epistoma receding; wing slightly infumated along veins......................................................... P. sponsa Giordani Soika, 1956 .