Hydrelia rubricosta is a moth in the family Geometridae first described by Hiroshi Inoue in 1982. It is found in Nepal and China.
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Geometridae |
| Genus: | Hydrelia |
| Species: | H. rubricosta |