Dialectica geometra is a moth of the family Gracillariidae. It is known from Hong Kong, Japan (the Ryukyu Islands), India (West Bengal, Tamil Nadu, Bihar, Delhi and Uttar Pradesh) and Réunion.Global Taxonomic Database of Gracillariidae (Lepidoptera) It has recently been recorded from China.
The wingspan is 6.5–8.2 mm.Japanese species of the Acrocercops-group (Lepidoptera: Gracillariidae). Part I
The larvae feed on Cordia amplifolia, Cordia myxa, Ehretia laevis and Ehretia species, including Ehretia microphylla. They mine the leaves of their host plant.
References