Metathrinca iridostoma is a moth in the family Xyloryctidae. It was described by Alexey Diakonoff in 1968. It is found on Luzon in the Philippines.[1]
The wingspan is 17–18 mm for males and 16–17 mm for females. The forewings are snow white, with a silky gloss and with the basal fourth of the costa with a narrow marginal fuscous line. The hindwings are glossy silvery white.[2]