We are trying to start a feeder colony of Discoid roaches and keep finding these "worms" in them. Tonight I convinced Mina to let me feed an adult Discoid to my T. blondi. After he crunched the roach and moved off a little I found one of these worms in the blondi's enclosure right where the roach had been. Can any one tell me what it is? For reference it is a little over an inch long and doesn't move.