Introduction and Natural History | Classification | Checklist of Species | Key to Subfamilies, Tribes and Genera | Taxonomic Treatments of Genera | Literature | Author Polytus Faust, 1894 Diagnosis: Small, 4-5 mm in total body length; elongate-narrow in form, uniformly black; antennal funicle of 6 articles, apex extended to posterior margin of eye; rostrum cylindrical, curved ventrally, separated from head by basal constriction; eyes not or barely visible in dorsal view; anterior margin of pronotum straight behind eye; tarsus of 5 articles, but article 4 small, located at very base of article 3, article 3 wider than 2 and bilobed ventrally, tibia with distinct subapical tooth at inner angle in addition to larger tooth at outer angle; front coxae widely separated; pygydium exposed beyond elytra; scutellum small, rhomboidal or subcircular, widest at middle. Natural history: The only species in this genus, Polytus mellerborgii, is associated with bananas. Diversity: This genus contains only the species Polytus
mellerborgii (Boheman). It is introduced from the Old World. Polytus mellerborgii (Boheman) Distribution: Costa Rica, Honduras, Mexico and Panama; introduced from Old World. Natural history: This species is known as the small banana weevil. It
has been widely introduced into banana growing areas around the world
from its native Malaysia. |
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