Oxyderces
Genus of beetles
From Wikipedia, the free encyclopedia
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.
| Oxyderces | |
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| Head of Oxyderces sp. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Cucujiformia |
| Family: | Curculionidae |
| Subfamily: | Entiminae |
| Tribe: | Eustylini |
| Genus: | Oxyderces Schönherr, 1823 |
Taxonomy
Description
In 1922 Sir Guy A. K. Marshall described the genus Plococompsus,[3] which is currently a synonym of Oxyderces.[4][5] This reference presents a good diagnosis for the genus:
This genus is proposed for a small homogeneous group of species of Compsus that are characterised especially by the presence of postocular vibrissae on the prothorax. Other characters are as follows: Scrobes narrow, curved downwards, but the upper edge attaining about the middle of the eye, so that the scape at rest passes across the lower half of the eye; the bare part of the scrobe not sharply defined, but gradually clothed with scales behind; epistomal setae very long and dense; scape not or only slightly exceeding the eye, comparatively slender, clavate, squamose, with the scales not overlapping; mentum with a group of setae on each side; insects with functional wings.
— Guy A. K. Marshall, VI. On new genera and species of Neotropical Curculionidae., p. 201
Distribution
Species list
The following species have been assigned to this genus:[5]
- Oxyderces argentinicus (Heller, 1921: 28):[6] Argentina.
- Oxyderces bimaculatus (Hustache, 1923: 290):[7] Argentina, Bolivia.
- Oxyderces cinereus (Hustache, 1938: 110):[8] Ecuador.
- Oxyderces cretaceus (Fabricius, 1792: 452):[9] Guadeloupe, Martinique.
- Oxyderces croesus (Faust, 1892: 11):[10] Venezuela.
- Oxyderces dubius (Voss, 1932: 40):[11] Paraguay.
- Oxyderces euchloris (Pascoe, 1880):[12] Peru.
- Oxyderces exaratus (Hustache, 1938: 111):[8] Colombia.
- Oxyderces mansuetus Hustache, 1938: 109:[8] Argentina.
- Oxyderces mirandus (Pascoe, 1880: 423):[12] Colombia, Ecuador. [synonyms:[13][5] Oxyderces cicatricosus (Hustache, 1938),[8] Oxyderces nigroundulatus (Hustache, 1938),[8] Oxyderces texatus (Hustache, 1938)[8]]
- Oxyderces sinuatocostatus (Hustache, 1938: 112):[7] Brazil.
- Oxyderces tarapotae (Hustache, 1938: 113):[8] Peru.
- Oxyderces viridiaeris (Hustache, 1938: 115):[8] Colombia.
- Oxyderces viridipes (Boheman, 1840):[14][2] Colombia.