1980] 
Evans, Matthews, & Hook — Pison in Australia 
223 
Figs. 1-6. 1. Nest of Pison rufipes on Acacia branch. 2. Nests of P. rufipes 
attached to pendant roots. 3. Egg of P. marginatum on prey, bearing a parasitoid 
larva. 4. Nest of P. ignavum on Banksia leaf. 5. Egg of P. spinolae on prey. 
6. Egg of P. marginatum on prey. 
