The Small Dusky-blue (Candalides erinus) is a species of butterfly of the Lycaenidae family. It is found in Australia and Indonesia. The wingspan is about 20 mm. Adults are dark brown with a purple sheen. The underside is fawn with brown markings. The larvae have been recorded feeding on Cassytha aurea, Cassytha filiformis and Cassytha pubescens. They are velvety green with a pale yellow dorsal line edged with brown markings. Pupation takes place in a grey or brown pupa with a length of about 10 mm.