''Lagenoderus'' is a genus of
leaf-rolling weevil
The Attelabidae is a widespread family of weevils. They are among the primitive weevils, because of their straight antennae, which are inserted near the base of the rostrum. The prothorax is much narrower than the base of the elytra on the abdom ...
that is noted for being strongly
sexually dimorphic
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most ani ...
. Species of this genus are all known from
Madagascar
Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...
. Females of ''Lagenoderus'' had been assigned to a different genus, ''
Phymatolabus'' Jekel, owing to confusion due to the species' sexually dimorphic nature.
References
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Attelabidae
{{Attelabidae-stub