Key to the species of the genus Drasterius Eschscholtz of Pakistan, followed Platia et Gudenzi, 1997
1 Apex of posterior angles of pronotum more sharp and more or less divergent....................................... 2
- Apex of posterior angles of pronotum less sharp, not divergent................................. D. sulcatulus Candèze
2 Apex of posterior angles of pronotum strongly divergent..................................... D. brahminus Candèze
- Apex of posterior angles of pronotum slightly divergent....................................................... 3
3 Antennae extended just base of pronotum, 2nd antennomere smaller than 3rd antennomere...... D. csorbai Platia et Gudenzi
- Antennae exerted before base of pronotum, 2nd antennomere longer and broader than 3rd antennomere.................. 4
4 Hind angles of pronotum rounded without carina, elytra narrower at behind........................ D. collaris Candèze
- Hind angles of pronotum acute with short distinct carina, elytra smoothly rounded at apex.................. Drasterius sp.