Brachmia tepidata is a moth in the Gelechiidae family. It was described by Meyrick in 1922. It is found in China (Shanghai). The wingspan is about 18 mm. The forewings are ochreous-brown, the costa and dorsum suffused dark brown. The stigmata is dark brown, the plical rather beyond the first discal. There is a rather narrow suffused dark fuscous terminal fascia, with the extreme terminal edge whitish. The hindwings are grey.