Key to genera of Indian Gigantometopini

1. Head and particularly eyes projected dorsally, distinctly exceeding height of pronotum in lateral view; pronotal collar long, longer than maximum width of first antennal segment, pronotal lateral margins carinate, broad, and flattened............................................................................... .. Astroscopometopus Yasunaga & Hayashi

– Head and particularly eyes slightly projected dorsally, barely exceeding height of pronotum in lateral view; pronotal collar shorter, about equal to maximum width of first antennal segment in G. rossi, pronotal lateral margins narrow.................................................................................... Gigantometopus Schwartz & Schuh