The tooth-nosed snout weevils, Rhynchitidae, are small beetles (1.5 to 6.5 mm) that are usually found in vegetation.

The tooth-nosed snout weevils receive this name due to the teeth on the edges of their mandibles.

Traditionally considered a subfamily of Attelabidae within the Curculionoidea (weevils and relatives), the tooth-nosed snout weevils are regarded as a separate family Rhynchitidae by some authorities.

The thief weevil, Pterocolus ovatus, is the only pterocoline (subfamily Pterocolinae) known from North America.

It is an obligate egg predator and nidus kleptoparasite (nest thief) of some beetles in the family Attelabidae.