I don't feed any insects, and my uros are going strong five years along. They get plenty of plant-source protein, so no need for the buggies. Since your uro isn't interested, don't worry about it!
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Torey
Eugene, Oregon, USA
1.1.5 Saharan Uros (Joe, Arthur, Waddles, Stilts, Hitch, Lefty, and one more)
3.0 Mali Uros (Spike, Turtle, and Tank)
1.1 Ornate Uros (Scuttlebutt and Shazzbot)
2.3 Collared Lizards (Ripcord, unnamed male, Thiamine, Riboflavin, and Niacin)
2.0 Green Anoles (Bowser and Sprocket)
1.1 Chubby Housecats (Roscolux and Jenny)