C. theae can refer to a few different species. The specific epithet refers to tea, and many of the below are pathogens of the tea plant.
Calonectria theae, a synonym of Calonectria indusiata, a fungal plant pathogen in the family Nectriaceae Candelospora theae, another synonym of C. indusiata, a fungal plant pathogen in the family Nectriaceae Candida theae, a yeast in the family Saccharomycetaceae found in some fermented beverages Capnodium theae, a fungal plant pathogen in the family Capnodiaceae Cercoseptoria theae, a synonym of Pseudocercospora theae, a fungal plant pathogen in the family Mycosphaerellaceae Cercospora theae, another synonym of C. indusiata, a fungal plant pathogen in the family Mycosphaerellaceae Cercosporella theae, a fungus in the family Mycosphaerellaceae , a leafhopper in the family Cicadellidae Coccotrypes theae, a bark beetle in the family Curculionidae , a lichen in the family Coenogoniaceae , a sac fungus in the family Leptosphaeriaceae Corticium theae, a fungal plant pathogen in the family Corticiaceae , a braconid wasp in the family Braconidae , a fungus in the family Rhytismataceae , a fungus in the family Gnomoniaceae Cylindrocladium theae, another synonym of C. indusiata, a fungal plant pathogen in the family Nectriaceae , a fungus in the family Valsaceae