Eustylini Explained

Eustylini is a primarily Neotropical weevil tribe in the subfamily Entiminae.^[1]

Taxonomy

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] 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]

Description

A diagnosis for the tribe was offered by Girón 2020:

Distribution

Eustylini ranges from south-western USA to Argentina, with its highest diversity in the Caribbean, Central America and northern South America.^{[7] [8]}

Genera

The tribe Eustylini currently includes 25 genera and 339 sdescribed species:

Notes and References

1. Book: Alonso-Zarazaga. M. A.. A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera) excluding Scolytidae and Platypodidae. Lyal. C. H. C.. Entomopraxis. 1999. Barcelona, Spain. 315 pp.
2. Book: Lacordaire, T.. Histoire Naturelle des Insectes. Genera des Coléoptères ou exposé méthodique et critique de tous les genres proposés jusqu'ici dans cet ordre d'insectes. Vol. 6.. Roret. 1863. Paris. 637 pp.
3. Wibmer. G. J.. O’Brien. C. W.. 1986. Annotated checklist of the weevils (Curculionidae sensu lato) of South America (Coleoptera: Curculionoidea). Memoirs of the American Entomological Institute. 39. 1–563.
4. Franz. Nico M.. 2012. Phylogenetic reassessment of the Exophthalmus genus complex (Curculionidae: Entiminae: Eustylini, Geonemini). Zoological Journal of the Linnean Society. 164. 3. 510–557. 10.1111/j.1096-3642.2011.00774.x. 0024-4082. free.
5. Franz. Nico M.. 2009. Redescriptions of critical type species in the Eustylini Lacordaire (Coleoptera: Curculionidae: Entiminae). Journal of Natural History. en. 44. 1–2. 41–80. 10.1080/00222930903383495. 3579230 . 0022-2933.
6. Girón. Jennifer C.. 2020. Status of knowledge of the broad-nosed weevils of Colombia (Coleoptera, Curculionidae, Entiminae). Neotropical Biology and Conservation. en. 15. 583–674. 4. 10.3897/neotropical.15.e59713. 231708108 . 2236-3777. free.
7. Wibmer. G. J.. O’Brien. C. W.. 1986. Annotated checklist of the weevils (Curculionidae sensu lato) of South America (Coleoptera: Curculionoidea). Memoirs of the American Entomological Institute. 39. 1–563.
8. O’Brien. C.W.. Wibmer. G.J.. 1982. Annotated checklist of the weevils (Curculionidae sensu lato) of North America, Central America, and the West Indies (Coleoptera: Curculionoidea). Memoirs of the American Entomological Institute. 34. 1–382.