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Sweet Potato Weevil

Cylas formicarius


Coleoptera; Brentidae; Cylas; C. formicarius Fabricius, 1798. "Cylas formicarius, the sweet potato weevil, is a species of sweet potato weevil in the beetle family Brentidae. It is found in Africa, Australia, the Caribbean, Europe, Northern Asia (excluding China), Central America, North America, Oceania, South America, Southern Asia, the Pacific Ocean, and temperate Asia." Wikipedia.


I spotted these weevils in the rice mill in some of the waste product which is used for feeding free range chickens and other animals. The broken and crumbled rice is a byproduct of milling and it had been stored too long. This is a common occurrence in the tropical climate here, especially in the rainy season.


The University of Florida has published an excellent paper on this species. It is really worth reading and has good pictures.

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John B.
Spotted by
John B.

Palauig, Central Luzon, Philippines

Spotted on Mar 24, 2018
Submitted on May 25, 2022

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