My beardie, Dar, is soooo spoiled he will only eat the white dubias. I have to scavenge the freshly molted ones for him or he won't eat. Unbelievable. He runs after them immediately and devours them the second he sees them. As for the brown dubias... He just pretends not to see them, or looks at me like, "Really? I'm not eating that!" He thinks the freshly molted white ones are soft and succulent, like vanilla pudding... Nom, nom! He has me well trained!