Delosia ornata is a species of cockroach in the family Ectobiidae.

A 1997 article published in Oriental Insects notes that the species has also been reported from Sri Lanka.

[3] It inhabits coastal woodland fragments, thriving in deep leaf litter dominated by Hernandia nymphaefolia and Guettada speciosa.

[1] Threats to its habitat include historical deforestation for coconut plantations in 1906, leaving only small woodland fragments (<100 m2) for its survival.

While some areas have regenerated to 1000 m2, in 2012, it was reported to be facing a severe threat from a planned hotel development jeopardizing its entire range.