noun
sweet potato weevil
A species of weevil (Cylas formicarius) that is a pest of sweet potatoes. The Japanese name literally means 'ant-mimicking weevil'.
アリモドキゾウムシはサツマイモの害虫です。
The sweet potato weevil is a pest of sweet potatoes.
この幼虫はアリモドキゾウムシの幼虫です。
This larva is the larva of a sweet potato weevil.
ゾウムシ is the general term for weevils, while アリモドキゾウムシ refers specifically to the sweet potato weevil.
The name is a compound of 蟻 (あり, ant) + 擬き (もどき, mimic) + 象虫 (ぞうむし, weevil), referring to its ant-like appearance.