Key to Curculionidae subfamilies recorded from Tierra del Fuego

1 Short and broad rostrum (except Haversiella)............................................................... 2

- Long and slender rostrum............................................................................... 3

2 Mandible with scar............................................................................. Entiminae

- Mandible lacking scar......................................................................... Cyclominae

3 Rostral channel limited by prosternum and reaching meso and metasternum, in which the rostrum is located when resting.......................................................................................... Cryptorhinchinae

- Rostral channel absent....................................................................... Curculioninae