Video

Mummified caterpillar

View in te reo Māori

This animation shows a caterpillar of the native Aoraia dinodes or Dumbletonius characterifer species of moths ingesting the reproductive spores of Ophiocordyceps robertsii – the vegetable caterpillar fungus. The caterpillar accidentally eats the spores when feeding on leaf litter on the forest floor.

The fungus then feeds on the insides of the caterpillar, mummifying it and producing a sporangium through the dead caterpillar’s neck and releasing spores.

The spores are not to scale – they are so small, you wouldn’t normally see them!

Transcript

A moth caterpillar accidentally eats the spores of Ophiocordyceps robertsii – the vegetable caterpillar fungi.

The caterpillar reverses back into the burrow where the fungus then feeds on its insides – mummifying it!

The fungus produces a sporangium through the dead caterpillar’s neck and releases spores for the next unsuspecting caterpillar.

Rights: The University of Waikato Te Whare Wānanga o Waikato
Published:14 April 2009