[1] Embryonopsis halticella was described by A. E. Eaton in 1876 from specimens collected on Kerguelen Islands.

[1] The whole life of a caterpillar is spent inside the inner fronds of tussock tillers.

All life stages can be found throughout the year but on Kerguelen, adults peak during December.

Caterpillars of Embryonopsis halticella cause extensive damage to tussock grass.

The distribution of the moth matches that of its food plant the tussock grass Poa cookii.