Epicaerus mexicanus

Boheman, 1842

Brown Leaf Notcher, Mexican Root Weevil

Epicaerus mexicanus is a of broad-nosed weevil in the Curculionidae, commonly known as the brown leaf notcher or Mexican root weevil. It is found in North America, with records from Mexico including states such as Guanajuato, Guerrero, and Oaxaca. The species belongs to the Entiminae, a diverse group of weevils often associated with feeding on plant foliage and roots.

Epicaerus mexicanus by Annika Lindqvist. Used under a CC BY 4.0 license.Epicaerus mexicanus Boheman, 1834 by NHM Beetles and Bugs. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Epicaerus mexicanus: /ˌɛpɪˈsɛərəs ˌmɛksɪˈkeɪnəs/

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Identification

As a member of the broad-nosed weevil Entiminae, E. mexicanus likely exhibits the characteristic short, broad rostrum typical of this group, distinguishing it from long-snouted weevils in other subfamilies. The "brown leaf notcher" suggests brown coloration and potential leaf-margin feeding damage. Specific diagnostic features distinguishing it from congeneric are not documented in available sources.

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Distribution

Recorded from Mexico, specifically from the states of Guanajuato, Guerrero, and Oaxaca, with additional records from Chilpancingo de los Bravo and Misantla. The is reported more broadly from North America in general sources, though precise northern range limits are not established.

Human Relevance

The "Mexican root weevil" suggests potential economic significance as a pest of cultivated plants, possibly feeding on roots or lower plant tissues. The name "brown leaf notcher" implies foliage damage. However, specific crop associations or documented pest status are not supported by available sources.

More Details

Taxonomic Authorship

The was described by Boheman, with dates cited variously as 1834 or 1842 in different sources. The Catalogue of Life lists it as a synonym under the 1834 authorship, while GBIF accepts it with 1842 authorship.

Collection Records

Specimens have been documented from multiple localities in central and southern Mexico, indicating the is established in this region rather than being a rare or peripheral occurrence.

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Sources and further reading