Colecerus
Schönherr, 1840
broad-nosed weevils
Species Guides
2- Colecerus dispar
- Colecerus marmoratus(Texas Marbled Weevil)
Colecerus is a of broad-nosed weevils in the Curculionidae, established by Schönherr in 1840. The genus contains approximately nine described distributed in the Americas, with records from the southwestern United States through Central America to northern South America. Members of this genus are classified in the Entiminae and tribe Eudiagogini. The genus includes the Texas marbled weevil (Colecerus marmoratus), a species with documented occurrence in Texas.
Pronunciation
How to pronounce Colecerus: /kɔˈleːʦerus/
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Identification
Colecerus are distinguished from other broad-nosed weevils by their placement in the tribe Eudiagogini, characterized by a broad, short rostrum (snout) typical of Entiminae. Species-level identification within the requires examination of specific morphological characters such as elytral coloration patterns, body shape, and pronotal features. Colecerus marmoratus is recognizable by its marbled or mottled elytral pattern.
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Distribution
Documented from the southwestern United States (Texas), Mexico, Guatemala, and Colombia. GBIF records indicate presence in Central America and northern South America, with specific country records including Guatemala and Colombia.
Human Relevance
Colecerus marmoratus, the Texas marbled weevil, has been documented in Texas and may be encountered in entomological surveys and biodiversity studies in the region.
Similar Taxa
- Other Entiminae generaBroad-nosed weevils in Entiminae share the characteristic short, broad rostrum; Colecerus is distinguished by tribal assignment to Eudiagogini and specific genitalic and external morphological features.
- Colecerus dispar vs. C. marmoratusThese sympatric in the southwestern United States are distinguished by elytral coloration and pattern: C. marmoratus has distinct marbled markings while C. dispar exhibits different coloration.
More Details
Taxonomic history
The was established by Schönherr in 1840. Several were later described by Champion (1911) and other authors, with Colecerus setosus and C. variegatus described by Boheman in 1840 and 1845 respectively.
Data sources
occurrence data is recorded in ITIS, Catalogue of Life, GBIF, and BugGuide.net. iNaturalist documents 332 observations for the as of current records.