Perga affinis insularis

Perga affinis insularis
Late December 2008
Images by Elizabeth Daley, used with permission.
Perga affinis insularis  Perga affinis insularis

Late March 2015
Waverley Flora Park, Howrah
Images by Geoff Carle, used with permission.

Mid March 2015
Waverley Flora Park, Howrah
Images by Geoff Carle, used with permission.

Sawfly larvae (Spitfires), Perga affinis insularis (?)
Mid September 2011

Pergine larvae are known as ‘spitfires’  because of their propensity to regurgitate concentrated eucalypt leaf oils when disturbed as a defence against potential predators. However this fluid does not come from their foregut but instead is pushed out from a specialised sac, called the diverticulum, that surrounds, but is not connected to, the foregut. The chewing action of pergine larvae allows some of the leaf oils to be squeezed out and channelled into the diverticulum via an entrance lying at the floor of the mouth.

Sickly looking individuals on grass under a Eucalypt.
Early October 2015