About Thudaca haplonota Meyrick, 1892
Thudaca haplonota is a moth species belonging to the family Depressariidae. It was first described by Edward Meyrick in 1892, published in 1893. This species is endemic to Australia, and all recorded specimens have been collected from Western Australia. The wingspan of adult moths ranges from 19 to 20 mm. Their forewings are silvery white, marked with bright orange patterns. The costal edge is blackish near the wing base, with a moderate-sized streak running immediately below the costa from the base to the costa just before the apex. There is also a rather broad dorsal streak from the base to the anal angle, which has a partial black upper edge, tapers towards the posterior end, and only leaves the inner margin narrowly white near the base. Two straight partially black-edged transverse streaks are present: the first runs from the subcostal streak at three-fifths of the wing length to above the middle of the subdorsal streak, not reaching close to the subdorsal, and is suffused with blackish grey barring above the middle. The second transverse streak runs from the end of the subcostal streak to the subdorsal streak before the subdorsal's end, and has blackish grey suffusion towards the costa and on a bar above its lower end. A small number of blackish scales are also present on the hindmargin. The hindwings are light grey, with a faint yellowish tinge.