| Eustylini | |
|---|---|
 | |
| Compsus auricephalus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Curculionidae |
| Subfamily: | Entiminae |
| Tribe: | Eustylini Lacordaire, 1863 |
| Genera | |
See text | |
Eustylini is a primarily Neotropical weevil tribe in the subfamily Entiminae. [1]
The tribe Eustylini was named for the first time by Jean-Baptiste Henri Lacordaire in 1863, [2] although, when first named, the tribe (Groupe Eustylides, p. 205) only contained three genera: Aptolemus (currently in Naupactini), Brachystylus, and Eustylus.
In 1986 the Eustylini contained most of its current genera, mostly due to revised taxonomic placements made by Guillermo Kuschel. [3] [1] The latest additions were made by Franz in 2012 by transferring former members of other tribes including Geonemini, Phyllobiini, and Tanymecini. [4]
The type species of some genera ( Compsus , Diaprepes , Eustylus , Exorides , and Exophthalmus ) were redescribed by Franz. [5] Most species of Eustylini are only known from their original descriptions. [6]
A diagnosis for the tribe was offered by Girón 2020: [6]
Medium to large weevils (approx. 10–25 mm); scale coverage highly variable in presence, density and coloration; iridescent scales, erect setae or waxy secretions are frequently present; surface smooth and even or strongly sculptured and irregular; head (including rostrum) subrectangular, nearly as long or longer than wide; eyes small to mid-sized, slightly dorsally positioned; frons usually as wide as or narrower than interantennal distance, often bearing median fovea; rostrum nearly parallel-sided or broadened apically; dorsal surface of rostrum with variable elevations or depressions, including longitudinal carinae or oblique fossae; antennal scrobe generally fully visible in dorsal view; nasal plate usually well developed, either depressed, flat or elevated regarding surface of rostrum; anterior margin of prothorax in lateral view straight, seldom slightly sinuate, never forming conspicuous postocular lobe; postocular setae may be present, if so, forming a fringe instead of a tuft; elytral shoulders usually well-developed, absent in Brachyomus, reduced in some Compsus and Exorides; tubercles and apical projections may be present on elytra; femora usually not toothed (except in some Eustylus).
— J.C. Girón, Status of knowledge of the broad-nosed weevils of Colombia (Coleoptera, Curculionidae, Entiminae).
Eustylini ranges from south-western USA to Argentina, with its highest diversity in the Caribbean, Central America and northern South America. [1] [3] [7]
The tribe Eustylini currently includes 25 genera and 339 sdescribed species: [3] [4]
The beetle subfamily Curculioninae is part of the weevil family Curculionidae. It contains over 23,500 described species in 2,200 genera, and is therefore the largest weevil subfamily. Given that the beetle order (Coleoptera) contains about one-quarter of all known organisms, the Curculioninae represent one of the – if not the – most successful radiations of terrestrial Metazoa.
The Entiminae are a large subfamily in the weevil family Curculionidae, containing most of the short-nosed weevils, including such genera as Entimus, Otiorhynchus, Phyllobius, Sitona, and Pachyrrhynchus. In comparison with their stunning diversity, only a few of these weevils are notorious pests of major economic importance. Entimines are commonly encountered in the field, including urban environments, and abundant in entomological collections.
Exophthalmus is a genus of broad-nosed weevils in the family Curculionidae. It contains 85 described species.
The Anypotactini are a Neotropical weevil tribe in the subfamily Entiminae. It includes 81 described species.
Entimini is a Neotropical weevil tribe in the subfamily Entiminae that includes 46 described species.
Geonemini is a weevil tribe in the subfamily Entiminae.
Diaprepes Schönherr 1823: 1140 is a genus of broad-nosed weevil belonging to the family Curculionidae, subfamily Entiminae, tribe Eustylini.
Compsus is a genus of broad-nosed weevils in the family Curculionidae, distributed across the Americas, primarily in northern South America.
Pandeleteius is a genus of broad-nosed weevils in the family Curculionidae. There are over 150 described species in Pandeleteius, distributed across the Americas. Most species in the genus were described by Anne Howden.
Polydacrys is a genus of broad-nosed weevils in the beetle family Curculionidae, subfamily Entiminae, tribe Anypotactini, present across the Americas and the Caribbean. There are eight described species in Polydacrys.
Polyteles is a South American genus of broad-nosed weevils in the subfamily Entiminae, tribe Entimini. There are seven described species distributed in Argentina, Bolivia, Brazil, Ecuador, Paraguay, Peru, and Uruguay.
Eustylus is a neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini.
Oxyderces is a genus of broad-nosed weevils in the family Curculionidae distributed in South America. It can be recognized by the presence of dense setae on the apex of the rostrum and postocular setae.
Exorides is a genus of broad-nosed weevils in the family Curculionidae, tribe Eustylini, distributed in northern South America.
Oxyderces viridipes is a species of broad-nosed weevils in the family Curculionidae. This species is endemic to Colombia, commonly found in Medellín and surrounding areas, but has been incidentally collected in the United States.
Compsus canescens is a species of broad-nosed weevils in the family Curculionidae. This species is endemic to Colombia, commonly found in Bogotá and surrounding areas.
Lachnopus is a genus of broad-nosed weevils in the family Curculionidae distributed in the Caribbean Region.
Brachyomus is a Neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini.
Synthlibonotus is a genus of broad-nosed weevils in the family Curculionidae distributed in northern South America.
Cyrtomon is a genus of broad-nosed weevils in the beetle family Curculionidae, present only in South America. There are six described species in Cyrtomon.
Data related to Eustylini at Wikispecies