Key to certain species of Colophotia using males

1. Elytral colouration mid to dark brown with pale lateral and sutural margins (Ballantyne & Lambkin 2013 fig. 62); narrow high median carina present between LO halves.................................................... plagiata Erichson Elytra pale brownish yellow dorsally, usually with an apical black area (Ballantyne & Lambkin 2009 figs 98–100; 2013 figs 99–104, 107); median carina in V7 may be either well defined, narrow and elevated, or scarcely elevated, broad and rounded ....................................................................................................2

2. Dorsal colour pale brownish yellow with elytral apices dark marked (Ballantyne & Lambkin 2009, figs 98–100; 2013 figs 99–103); median carina on V7 well defined, elevated and acutely margined; LO halves in V7 narrowly separated......... 3 Elytra totally pale yellow dorsally; median carina between LO halves low and wide; (Ballantyne & Lambkin 2009 figs 510– 512); LO halves in V7 widely separated (Figs 206−221)................................. concolor Olivier; bakeri Pic

3. PLP of V7 well defined at least half as long as MPP; LO halves in V7 well separated; long and wide MPP with median ventral groove, prolonged at its apex into large hooks which curve strongly dorsally..... .. particulariventris Pic, praeusta Eschsch. PLP of V7 very short, about ¼ as long as MPP; LO halves in V7 very close; MPP longer than wide, without median ventral groove, prolonged at its apex into relatively short slender hooks which curve slightly inwards and upwards.... brevis Olivier