Phodoryctis caerulea is a moth of the family Gracillariidae. It is known from India (Maharashtra, Tamil Nadu, Bihar), Malaysia (Sabah), Indonesia (Java), Sri Lanka, Fiji, Guam, the Solomon Islands, Japan (Kyà «shà «, the Ryukyu Islands) and Taiwan, as well as Madagascar, Mauritius, Réunion, Uganda and Tanzania.
The wingspan is 6âÂÂ8 mm.
The larvae feed on Carissa carandas, Caesalpinia pulcherrima, Diospora deltoidea, Cajanus cajan, Calopogonium mucunoides, Canavalia species (including Canavalia ensiformis), Centrosema pubescens, Crotalaria juncea, Dolichos lablab, Dumauis bicolor, Glycine max, Lablab purpureus, Macroptilium atropurpureum, Macroptilum lathyroides, Phaseolus mungo, Phaseolus semierectus, Phaseolus vulgaris, Pueraria phaseoloides, Vicia faba, Vigna catjang, Vigna marina, Vigna marina, Vigna mungo, Vigna radiata, Vigna umbellata, Vigna unguiculata, Cissampelos pereira, Cyclea species, Stephania hermandifolia, Stephania japonica, Tinospora cardifolia and Coffea species. They mine the leaves of their host plant.