Catoryctis nonolinea is a moth in the family Xyloryctidae. It was described by Thomas Pennington Lucas in 1894. It is found in Australia,[1] where it has been recorded from New South Wales and Queensland.
The wingspan is 13–15 mm. The forewings are rich chocolate fuscous with ochreous-silvery lines and a slender attenuated streak immediately beneath the costa from the base to two-fifths, a thin line immediately beneath this at two-thirds running obliquely to two-thirds of the costa, two short thin lines immediately beyond this and parallel, a short arrowhead line immediately beyond broadening in the apical angle to the apex, with a tendency to divide at the apex, a moderately broad straight line from just before the middle of the wing to one-third of the hindmargin, with a tendency to divide before the hindmargin, a narrower line immediately beneath and parallel to this imperfectly divided on the hindmargin, a moderately broad streak from the inner margin at the base to the anal angle, with a similar line parallel and close to the inner margin. The hindwings are light shining ochreous, with a fuscous cloudy suffusion at the apical angle narrowing to a point opposite the middle of the hindmargin.
The larvae possibly feed on Casuarina species.[2]