Lecithocera metacausta is a moth in the family Lecithoceridae. It is found in India (Assam, Himachal Pradesh), Taiwan and Korea.

The wingspan is 13–16 mm. The forewings are yellow-ochreous, suffusedly sprinkled with brown or dark fuscous and with the base of the costa more or less suffused with dark fuscous. The discal stigmata are dark fuscous, sometimes with a transverse mark of dark fuscous suffusion between the second discal and the dorsum. There is a dark fuscous patch along the termen from the apex, more or less narrowed downwards and not reaching the tornus. The hindwings are pale grey or in females sometimes grey.

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