Deltoplastis lamellospina is a moth in the family Lecithoceridae. It was described by Chun-Sheng Wu and Kyu-Tek Park in 1998. It is found in Sri Lanka.

The wingspan is 13–14 mm.

Etymology The species name is derived from Greek lamella (meaning plate) and spina (meaning spine).Wu, C. S. & Park, K. T. (1998). "Taxonomic review of the family Lecithoceridae (Lepidoptera) from Sri Lanka II. The subfamily Torodorinae: Genera Deltoplastis Meyrick, Hygroplasta Meyrick, and Antiochtha Walker". Insecta Koreana. 15 : 1-22.

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