Some pepsis

[plague0318]

Hi,it is my first time use this website
I have many questions and look forward to being answered
In this photo are my collection,but i can't not sure what kind are these 2 pepsis
The left is from Peru(body 41mm)
The right is from Malaysia(body 44mm)
Does anyone know their scientific name?

[Adam Cotton]

plague0318,

Welcome to Insectnet. Sorry I cannot help identify these wasps, but I expect someone will be able to help.

I have seen wasps in the forest some years ago very similar to the Malaysian specimen. I seem to remember they make a distinct low buzzing sound as they fly. I must admit they are rather scary as I am not very keen on wasps in general, having had bad experiences as a boy and I still bear a scar resulting from a Provespa sting more than 30 years ago.

I must compliment you on the excellent presentation of the specimens.

Adam.