Pterophorus wahlbergi is a moth of the Pterophoridae family. It is known from Japan (Honshu, Kyushu, Tsushima), China, Saudi Arabia, Iran, Sri Lanka, India, Central, East and South Africa, St. Helena, Mauritius, the Seychelles and Rodriguez Island. It has recently been recorded from Vietnam. Records for Australia where based on synonymisation with Stenodacma pyrrhodes. The length of the forewings is 6–7 mm. Adults emerge from April to October in Japan.