Key to the species of Ikaros gen. nov.

1. Arch-like carina present on terga 3–5; stark polygon-shaped microsculpture present on the dorsal surface of the head and thorax; long (macrosetae at least twice as long as antennomeres) crown-like macrosetae on antennomeres ................................................................. I. polygonos gen. et sp. nov.

– Arch-like carina absent on terga 3–5; without stark polygon-shaped microsculpture on the dorsal surface of the head and thorax; crown-like macrosetae on antennomeres not as long, shorter than antennomeres .................................................................................................................................... 2

2. Disc of pronotum with only the few punctures of the dorsal row .............. I. apteros gen. et sp. nov.

– Disc of pronotum with multiple rows of punctures ................................... I. paramo gen. et sp. nov.