Well I have really refrigerated any of the insects I suppose ;)
While you did what you had to do and the result did came out pretty good though ;) I have never tried to meddle with insects of the plants as I have a little less expertise in that matter ;)
While to say about the pictures you did take them very nicely.
lol, it's just for hours and my fridge is probably just 7 degrees
they even survive months of winter
just kidding ;)