These are about 3mm long and 2mm wide. Any ideas what they are?

The white dots in the microscope picture are from the LED lights not a feature of the insect.





Thanks!

fascinating.
where in the world are they located? where were they collected?

absolutely new hatch of roach?
I'd try and look that up google images but then whether this is a match or not, I would be horribly creeped out.