| Common name (English) | |
|---|---|
| Chrysolina americana | Rosemary beetle |
| Chrysomphalus aonidum | Florida red scale, Egyptian black scale, Circular black scale, Citrus black scale |
| Cicadulina bipunctata | |
| Clavibacter michiganensis michiganensis | Bacterial canker of tomato |
| Closterocerus chamaeleon | |
| Coccidoxenoides perminutus | |
| Coccophagus scutellaris | |
| Coccotrypes dactyliperda | Date stone beetle; Palm seed borer; Button beetle |
| Coccus hesperidum | Brown soft scale |
| Coccus longulus | Long brown scale |
| Coccus pseudomagnoliarum | Citricola scale |
| Coloradoa rufomaculata | |
| Contarinia citri | Citrus blossom midge |
| Dactylopius coccus | Cochineal |
| Dactylopius opuntiae | Opuntia cochineal scale |
| Dactylosternum abdominale | |
| Dialeurodes kirkaldy | |
| Diaphorina aegyptiaca | |
| Diaspis echinocacti | Cactus scale |
| Dichelia cedricola |