Osmopleura chamaeropis
(Horn, 1893)
Cabbage Palm Longhorn
Osmopleura chamaeropis is a longhorn beetle (Cerambycidae) and the sole in its . It was described by George Henry Horn in 1893. The species is to the southeastern United States, where it is associated with cabbage palm (Sabal palmetto). Its reflects this relationship.

Pronunciation
How to pronounce Osmopleura chamaeropis: /ˌɒzmoʊˈplʊərə ˌkeɪməˈrɒpɪs/
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Identification
As the only in the Osmopleura, this is distinguished from other cerambycines by its unique generic-level characteristics. It belongs to the tribe Agallissini, which includes other palm-associated longhorn beetles such as those in the genus Agallissus. Specific diagnostic features for field identification are not well documented in available sources.
Images
Habitat
Associated with cabbage palm (Sabal palmetto) in the southeastern coastal plain. Occurs in palm-dominated including coastal hammocks, maritime forests, and suburban areas where cabbage palms are present.
Distribution
to the southeastern United States. Documented from Georgia and Florida.
Diet
Larvae are known to develop in living cabbage palms (Sabal palmetto). feeding habits are not well documented.
Host Associations
- Sabal palmetto - larval Cabbage palm; larvae develop in living trunks
Ecological Role
As a herbivore of cabbage palms, the contributes to nutrient cycling through palm tissue consumption. Its larval tunneling in living palms may create for other organisms, though this has not been quantified.
Human Relevance
May be encountered by homeowners and arborists in areas with cabbage palms. Not known to be a significant economic pest, though larval activity in ornamental palms could cause concern. The is documented in citizen science platforms with over 260 observations.
Similar Taxa
- Agallissus spp.Members of the same tribe Agallissini, also palm-associated longhorn beetles. Osmopleura is distinguished by its status and specific association with Sabal palmetto.
More Details
Taxonomic uniqueness
Osmopleura is a , making O. chamaeropis the only representative of its generic lineage within the diverse Cerambycidae .
Conservation status
Not formally assessed, but likely secure given its association with the widespread and common cabbage palm. However, coastal loss in its limited range could pose localized threats.