That will seriously malnourish your dragon. How much and what they eat depends on how old your dragon is. Here's an excerpt from my Care Sheet I made for spreading good info for Bearded Dragons :) Live Prey. Silkworms (Best), Phoenix Worms, Crickets (Gut Load and Dust) or Roaches (Dubia or Lobster to name two).
Namibia boasts the largest free-roaming population of black rhino in Africa, and the largest cheetah population in the world. Namibia is also home to a unique population of elephants that have adapted to the arid climate.
As most of Namibia is covered by desert it is unsurprising that the climate is exactly what you would expect from a desert country. Daytime temperatures are hot (extremely hot in summer) and nights are cold, some areas frequently go below freezing in winter. Rainfall is sparse; with the northeastern areas of Namibia getting the most rain (this area is tropical) and rainfall decreasing as you travel south and westwards. The Namib desert runs along the coast and rain in this area is rare. The rainy season in central Namibia starts in January and runs until the middle of April, further north the rains begin earlier and as you travel south the season becomes shorter.