Tetrabothynus
Labram & Imhoff, 1852
Tetrabothynus is a of broad-nosed in the , Entiminae. The genus was established by Labram and Imhoff in 1852. It belongs to the tribe Eustylini, a group of weevils characterized by their broad snouts and often colorful or patterned bodies. Very few observations of this genus exist in public databases, suggesting it is either rare, poorly sampled, or restricted to specific .
Pronunciation
How to pronounce Tetrabothynus: /tɛtrəˈbɒθɪnəs/
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Identification
As a member of Entiminae, in this likely possess the broad, short (snout) characteristic of broad-nosed , distinguishing them from the elongated snouts of other weevil . Within Eustylini, identification to genus requires examination of and other subtle morphological features not reliably determined from external appearance alone.
Distribution
Records from GBIF indicate presence in Cuba (CU) and Peru (PE), suggesting a Neotropical distribution. The sparse records may reflect limited sampling rather than true rarity.
Similar Taxa
- Other Eustylini generaSimilar broad-nosed ; requires dissection or detailed examination of mouthparts, , and for separation.
- Other Entiminae generaShared broad and general body form; distinguished by tribal-level characters including antennal insertion and shape.
More Details
Taxonomic note
The Tetrabothynus has been treated in various ways in historical literature. Some authors have considered it a synonym of other Eustylini genera, though current databases treat it as valid. The and number of included species require verification from primary taxonomic literature.
Data quality
Only two observations exist in iNaturalist as of the knowledge cutoff, and GBIF records are limited to four entries from two countries. This paucity of data severely limits ecological and biological inferences.