Syllepte solilucis is a moth in the Crambidae family. It was described by Hampson in 1898. It is found in Indonesia (Irian Jaya). The wingspan is about 30 mm. Adults are pale golden yellow, the forewings with the costal area fuscous grey or yellow. The termen is fuscous grey, expanding widely towards the apex. The hindwings have a fuscous grey terminal line.