''Tanychastis'' is a genus of moths of the family Oecophoridae.

Species

*'' Tanychastis lysigama'' Meyrick, 1910 *'' Tanychastis moreauella'' Guillermet, 2011

References

* Meyrick, E. 1910a. ''Descriptions of Micro-Lepidoptera from Mauritius and Chagos Isles''. - Transactions of the entomological Society of London 1910 (3):366–377 Oecophoridae {{Oecophoridae-stub