something in my cuttings

see through with a dark inside sounds like a sort of magot but that small it must be a very small fly

They sound like the larvae if the fungus gnat (sciarid fly). They feed on decaying vegetation so try to keep your compost tidy with your cuttings in.
Some can attack roots but don't usually cause much damage.

aaah that explains it then
they were on cuttings that I was clearing out today cos they hadnt made it

x x x

thanks to you both