David Holland's photos with the keyword: parasitoid wasp

I think a wasp maybe parasitoid on the wall of my house during a warm spell. I wonder if it is investigating it's hosts nests. l The real size is 7.8 mm, magnification is 1.4

I think a parasitoid wasp on a mining bee colony, Hutchinson's bank, New Addington The real size is 3.48 mm, magnification is 2.8