Cryptophasa albacosta, the small fruit tree borer, is a moth in the Xyloryctidae family. It was described by Lewin in 1805. It is found in Australia, where it has been recorded from New South Wales, Queensland, South Australia, Tasmania and Victoria. The larvae feed on Banksia serrata, Macadamia integrifolia, Ceratopetalum gummiferum, Callicoma serratifolia, as well as introduced Tamarix species, poplar, apricot and plum. They bore in the stems of their host plant, tying cut leaves to the bore entrance.