As many as 8 of these large paper wasps (~4cm long) and countless ants were feeding from the oozing sap of this tree. It was quite a spectacle in the dying light of the day. Note the ants hanging onto the leg and wing of the wasp.
The wasp's incessant wingbeats could only be partly 'frozen' by flash. now that's speed!
(Full Frame, with only an increase in contrast in photoshop)