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Cosmopolites Chevrolat, 1885

Diagnosis: Small to moderately large, 8-12 mm in total body length; elongate-narrow in form, uniformly black; antennal funicle of 6 articles, apex extended beyond posterior margin of eye; rostrum cylindrical, curved ventrally; anterior margin of pronotum straight behind eye, pronotal disk with dense deep punctures; elytra lacking setose nodules, intervals punctate and slightly convex, smooth; tarsus of 5 articles, but article 4 small, located at very base of article 3, article 3 very slightly wider than 2 and not distinctly bilobed ventrally; front coxae narrowly separated; pygydium exposed beyond elytra; metepisternum narrow, length 3 or more times width; scutellum rhomboidal or subcircular, widest at middle.

Natural history: The only species in this genus, Cosmopolites sordidus (Germar), is a pest of bananas.

Diversity: This genus contains only the species Cosmopolites sordidus (Germar) introduced from the Old World.

Cosmopolites sordidus (Germar)

Distribution: Costa Rica, El Salvador, Honduras, Mexico, Panama and United States (Florida); also in West Indies and South America. Introduced from Old World.

Natural history: This species is commonly called the banana weevil borer. It is a pest of bananas and other species in the genus Musa. It has been widely introduced around the world from its native Malaysia and Indonesia and occurs just about everywhere that bananas are grown.

Details of its biology and control are available at:


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