Rhetus arcius
| Rhetus arcius | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Lepidoptera | 
| Family: | Riodinidae | 
| Genus: | Rhetus | 
| Species: | R. arcius | 
| Binomial name | |
| Rhetus arcius | |
| Synonyms | |
| 
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Rhetus arcius, the long-tailed metalmark, s a species of Neotropical butterfly, first described in Carl Linnaeus' 1763 Centuria Insectorum.