These were small wrinkled 5 mm wide balls at the end of stems of a casuarina tree. At least one small branch had several of these with holes ( parasitoid ?). Most were dry but a single fresh green gall on the same branch had a knobbly surface. When dissected the gall showed several thick-walled locules.
These look similar to galls seen on C.glauca induced by the gall wasp Selitrichodes. I would greatly appreciate help with identifying the gall inducer and the Casuarina species. Thanks.
Solitary stalked outgrowths from stems of a eucalyptus tree ( species not known) about 25 mm long and about 5 mm at the thickest part. One of them had split outer layers and a definite pointy tip. This gall was parasitised.
There were two similar but smaller galls on other branches but these had rounded tips. The galls were all dry.