I haven't done market research, but as far as I know, I personally think Tenebrio molitor is better. Although the wheat worm is big, it is more fierce than Tenebrio molitor in the process of feeding, often eating the weak, and the loss rate is high. And if it is sold, it is mainly used as feed for noble pets, and the market of Tenebrio molitor is more extensive. The cost of feeding Tenebrio molitor is the same as that of feeding Tenebrio molitor with 4 kg coarse feed and a small amount of vegetable leaves, and wheat worm with 3 kg fine feed and 5 kg green feed, which is much higher than that of wheat worm.