Polydrusus americanus

Gyllenhal, 1834

American broad-nosed weevil

Polydrusus americanus is a of broad-nosed weevil in the Curculionidae. It was described by Gyllenhal in 1834 and is found in North America. The species belongs to the Entiminae, a group of weevils characterized by their broad, short rostra. Like other members of its , it is a phytophagous beetle.

Pronunciation

How to pronounce Polydrusus americanus: //ˌpɒlɪˈdruːsəs əˌmɛrɪˈkeɪnəs//

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Identification

As a member of the Polydrusus, this possesses the characteristic broad, short rostrum typical of broad-nosed weevils in the Entiminae. Species-level identification within Polydrusus requires examination of specific morphological features such as body coloration, patterns, and genitalia structure. The species can be distinguished from other North American Polydrusus by subtle differences in elytral and body proportions.

Distribution

Recorded from District of Columbia, Illinois, Indiana, Kansas, and Maryland in the United States. The is found in North America, though specific associations remain poorly documented.

Similar Taxa

Other Polydrusus speciesMembers of this share the broad-nosed weevil and require careful examination for -level separation.
Other Entiminae weevilsBroad-nosed weevils in this share the characteristic short, broad rostrum and general body form.

More Details

Taxonomic Status

The Catalogue of Life lists this as a synonym, while GBIF and iNaturalist treat it as accepted. This discrepancy suggests ongoing taxonomic evaluation.

Data Deficiency

This is extremely poorly known. As of the available sources, there were only 4 observations recorded on iNaturalist, and no detailed biological studies have been published.