Brachyomus
Genus of beetles
From Wikipedia, the free encyclopedia
Brachyomus is a Neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini.[1]
| Brachyomus | |
|---|---|
| |
| Head of Brachyomus octotuberculatus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Cucujiformia |
| Family: | Curculionidae |
| Subfamily: | Entiminae |
| Tribe: | Eustylini |
| Genus: | Brachyomus Lacordaire, 1863 |
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]
- Brachyomus bicostatus Faust, 1892: 14:[3] Venezuela.
- Brachyomus histrio Faust, 1892: 14:[3] Venezuela.
- Brachyomus metallescens Pascoe, 1880: 427:[6] Ecuador, Peru.
- Brachyomus octotuberculatus (Fabricius), 1787: 112:[7] French Guiana, Trinidad, Venezuela.
- Brachyomus quadrinodosus (Boheman), 1842: 217 [8] = Brachyomus sallei Faust, 1892: 15:[3] Colombia, Venezuela.
- Brachyomus quadrituberculatus (Boheman), 1842: 216:[8] Colombia, Venezuela.
- Brachyomus tuberculatus (Boheman), 1842: 218:[8] Saint Vincent.
