He don't have memories but he could have it is why Welfin ask.
I said that every ants could possibly have past memories (royal guards included), it is why Welfin ask. The contrary was never said.
And we don't know what Pito did with Kite, we don't know if he was eaten or not but we know that she cut his head and that she think that the brain is the most delicious part.
And for me it isn't that the explanation: