Telamoptilia prosacta is a moth of the family Gracillariidae. It is known from Thailand, Taiwan, Indonesia (Java), India (Bihar), Japan (the Ryukyu Islands) and Fiji.
The wingspan is 6.5âÂÂ8 mm.
The larvae feed on Ipomoea species, including Ipomoea batatas. They mine the leaves of their host plant. It has not been recorded as a severe pest.