Coastal cliff-heath habitat south of Adelaide, in this case at Port Stanvac.

The Gahnia lanigera is the very low, black grass-like sedge visible in the immediate foreground.

Dry woodland habitat on northern Eyre Peninsula.

The low dark green coloured, tussock-like sedge is Gahnia lanigera, the preferred hostplant for A. atralba.

Final larva shelter on Gahnia lanigera after recent fire.

Length of enclosed part is about 5 cm. The opening is at the bottom.

Final larva shelter on
Gahnia deusta, Eyre Peninsula.

The opening is at the bottom.

Final larva shelter on
Gahnia ancistrophylla, Eyre Peninsula.

The opening is at the bottom.

Newly laid egg

Closeup of egg near hatching, showing the finer ridge details