Brachyomus

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Brachyomus
Brachyomus.jpg
Head of Brachyomus octotuberculatus
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Infraorder: Cucujiformia
Family: Curculionidae
Subfamily: Entiminae
Tribe: Eustylini
Genus: Brachyomus
Lacordaire, 1863

Brachyomus is a Neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini. [1]

Contents

Taxonomy

Brachyomus was described for the first time by Jean-Baptiste Henri Lacordaire in 1863 (p. 130). [2]

Description

Members of the genus Brachyomus are easily confused with members of the genus Compsus . Members of Brachyomus lack elytral shoulders and usually bear tubercles (four or more; there are only two in Compsus when they have them) on the broadest part of the elytra. They are usually covered by brown to whitish scales, forming some patterning; they can also bear metallic green or blue scales; some species have waxy secretions at the base of the elytral tubercles. There are thick scales rather uniform;y distributed all over the surface of the body, sometimes more densely so on the elytral tubercles. There is a key to identify most species in Faust (1892). [3]

Distribution

The genus Brachyomus is distributed in Colombia, Ecuador, French Guiana, Peru, Trinidad, Venezuela and Saint Vincent [1] [4] [5]

List of species

Brachyomus contains 7 described species: [4] [5]

  1. Brachyomus bicostatusFaust, 1892: 14: [3] Venezuela.
  2. Brachyomus histrioFaust, 1892: 14: [3] Venezuela.
  3. Brachyomus metallescensPascoe, 1880: 427: [6] Ecuador, Peru.
  4. Brachyomus octotuberculatus(Fabricius), 1787: 112: [7] French Guiana, Trinidad, Venezuela.
  5. Brachyomus quadrinodosus(Boheman), 1842: 217 [8] = Brachyomus salleiFaust, 1892: 15: [3] Colombia, Venezuela.
  6. Brachyomus quadrituberculatus(Boheman), 1842: 216: [8] Colombia, Venezuela.
  7. Brachyomus tuberculatus(Boheman), 1842: 218: [8] Saint Vincent.

References

  1. 1 2 Alonso-Zarazaga, M. A.; Lyal, C. H. C. (1999). A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera) excluding Scolytidae and Platypodidae (PDF). Barcelona, Spain: Entomopraxis. pp. 315 pp.
  2. ↑ Lacordaire, J.T. (1863). Histoire naturelle des insectes: Genera des Coléoptères ou exposé méthodique et critique de tous les genres proposés jusqu’ici dans cet ordre d’insectes. Tome Sexième. Contenant la famille des Curculionides. Paris: Librairie encyclopédique de Roret. pp. 637 pp.
  3. 1 2 3 4 Faust, Johannes (1892). "Reise von E. Simon in Venezuela. Curculionidae. Pars prima". Entomologische Zeitung. 53: 1–44.
  4. 1 2 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.
  5. 1 2 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.
  6. ↑ Pascoe, F.P. (1880). "New Neotropical Curculionidae. Part I". The Annals and Magazine of Natural History. 5: 419–428.
  7. ↑ Fabricius, Johann Christian (1787). Mantissa insectorum sistens eorum species nuper detectas adiectis characteribus genericis, differentiis specifis, emendationubus, observationibus (in Latin). Hafniae: Proft. pp. XX + 348 pp.
  8. 1 2 3 Schönherr, C.J. (1842). Genera et species Curculionidum, cum synonymia hujus familiae. Species novae aut hactenus minus cognitae, descriptionibus a Dom. Leonardo Gyllenhal, C. H. Boheman, et entomologis aliis illustratae, tomus sextus, pars secunda. Paris: Roret. pp. 495 pp.
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