Catacometes hemiscia is a moth in the family Oecophoridae. It was described by Edward Meyrick in 1883.^[1] It is found in Australia, where it has been recorded from New South Wales.^[2]

The wingspan is about 16 mm. The forewings are white, towards the costa faintly greyish tinged and with a dark fuscous blotch on the inner margin, extending almost from the base to two-fifths, terminated above by the fold, posteriorly lighter and ill defined. There is an ill-defined cloudy fuscous subquadrate blotch beyond this, extending on the inner margin from before the middle to three-fourths, reaching rather more than halfway across the wing. There is also a dark fuscous dot in the disc before the middle, confluent with the anterior angle of this blotch, and a small dark fuscous spot in the disc beyond middle, connected with the posterior edge of the blotch near the inner margin by a curved row of three smaller fuscous spots. There is a dark fuscous ill-defined partially interrupted transverse line from just below the costa at two-thirds to before the anal angle, angulated outwards in the disc. A straight suffused dark fuscous line is found from the costa a little before the apex to the hindmargin just above the anal angle, beyond which the ground colour is suffused with pale grey, forming a narrow hindmarginal band. The hindwings are whitish grey, towards the base whitish.^[3]

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