Onebala iridosoma is a moth in the Gelechiidae family. It was described by Meyrick in 1918. It is found in Australia, where it has been recorded from Queensland. The wingspan is 11-12 mm. The forewings are dark fuscous with three irregular pale blue-metallic transverse streaks, obtusely angulated and interrupted above the middle, the first from near the base of the costa to one-third of the dorsum, the second from one-third of the costa to beyond the middle of the dorsum, the third from three-fifth of the costa to two-third of the dorsum, the two latter with white on the costal edge. There is some brownish-ochreous suffusion between these on the subdorsal area, as well as a curved brownish-ochreous line from above the middle of the third streak to four-fifths of the dorsum. There is also a