Not seen two wasps behaving like this before.

[Gilberdyke John]

I've not seen this wasp behaviour before today.

 

[MillMeadow]

That looks like a conspiracy in the making!

 

[enrico]

That looks like a conspiracy in the making!

Or love in the making although I am not sure what a male wasp looks like, ( that sounds a bit genderist these days)

 

[bingevader]

Difficult to tell scale from the pics, but they look like two workers.
The queen is much bigger (as you probably know, from seeing them appear in the spring after hibernation, looking for possible nest sites).
The drones are somewhere between the queen and the worker, noticeably larger than a worker, but smaller than the queen.
Don't know if that helps with regards to the pics!
Just sniffing each other out?

 

[Gilberdyke John]

Difficult to tell scale from the pics, but they look like two workers.
The queen is much bigger (as you probably know, from seeing them appear in the spring after hibernation, looking for possible nest sites).
The drones are somewhere between the queen and the worker, noticeably larger than a worker, but smaller than the queen.
Don't know if that helps with regards to the pics!
Just sniffing each other out?

If it had been bees I'd have said trophallaxis but didn't think worker wasps exhibited such behaviour. Maybe I need to get out more?

 

[Anduril]

Maybe I need to get out more?

Or keep a wasps nest as an observation hive.

 

[Xander]

Maybe the one in front is Duncan Norvelle...

 

[IndiBee]

One has clearly kissed the other without permission and is now in deep trouble

 

[Macbear]

Wasp waggle dancing? "I've discovered a hive where the guard bees have been at the mead.. this way, but don't tell anyone else."

 

[North End Bees]

If it had been bees I'd have said trophallaxis but didn't think worker wasps exhibited such behaviour. Maybe I need to get out more?

Wasps do practise trophallaxis, same as bees.
As larvae, the regurgitation of sweet substances keeps the adult coming back to feed them protein. Adult wasps also share sweet resources, e.g a baited wasp trap.

As an aside, if a wasp gets into the hive unhindered and takes on the hive odour, it can go in and feed its compatriots through the omf. (Same goes for robber bees.)

 

[Gilberdyke John]

Wasps do practise trophallaxis, same as bees.
As larvae, the regurgitation of sweet substances keeps the adult coming back to feed them protein. Adult wasps also share sweet resources, e.g a baited wasp trap.

As an aside, if a wasp gets into the hive unhindered and takes on the hive odour, it can go in and feed its compatriots through the omf. (Same goes for robber bees.)

Would either bee or wasp practice trophallaxis out in the open air like the video?

 

[North End Bees]

Would either bee or wasp practice trophallaxis out in the open air like the video?

I've not actually seen it but don't see why they wouldn't, as a way of communicating resources.