Xestocasis is a moth genus of the superfamily Gelechioidea. It was described in the family Heliodinidae and is sometimes also listed in the Cosmopterigidae, but actually seems to belong in the Oecophoridae (possibly in the subfamily Stathmopodinae).
Species Xestocasis antirrhopa Diakonoff, 1955 Xestocasis balanochrysa Meyrick, 1915 Xestocasis colometra Meyrick, 1915 Xestocasis erymnota Meyrick, 1917 Xestocasis hololampra Meyrick, 1915 Xestocasis iostrota (Meyrick, 1910) Xestocasis lauta (Meyrick, 1921) Xestocasis tetraconcha Meyrick, 1917
Former species Xestocasis crocodelta Meyrick, 1915