1, different sources
Tenebrio molitor: Native to North America, it was brought back to China from the Soviet Union in 1950s.
Dracunculiasis: It is native to South Africa and Central Africa, but it has been introduced from Southeast Asian countries in recent years.
2. Larvae have different shapes.
Tenebrio molitor:
The body is slender and cylindrical. The mature larvae are (24 ~ 29) mm long, and the newly hatched larvae are milky white, and then turn yellow-brown. The front and rear edges of each node are light brown, and the internodes and ventral surfaces are yellow and white. The length and head shell width of each larva are relatively stable, which is the main basis for the age classification of larvae.
Barley worm:
Larvae is generally 40 ~ 60mm long and 5 ~ 6mm wide, and the weight of a single insect is 1.3 ~ 1.5g, which is cylindrical. Its body wall is hard, yellow-brown, shiny, with 13 nodes, yellow-brown ring lines at the joints of each node, and yellow ventral surface. During the growth of larvae, the color of body surface is white at first. After molting for the first time, it turns yellow-brown, and molts 1 time every 4 ~ 6 days, and molts 6 ~1time in larval stage. The growth period is 60 days. Larvae began to molt, and the activities before molting began to decrease. The newly molted larvae are milky white and very fragile. The most vulnerable.
Adults have different shapes.
Tenebrio molitor:
Adults are generally flat and rectangular, with a body length of (13.020.91) mm+0) mm, and a body length of (4.11.33) mm. The newly emerged adults have beige coleopters and brown chest backboards. After 3 hours, the coleoptera will turn reddish brown, 3 ~.
Barley worm:
The newly molted ones are milky white, with orange heads and thin shells. 1 ~ 2 days later, the back turned dark brown and the abdomen turned brown. The whole shell is oval, about 25 ~ 30mm long and 8mm wide.
Tenebrio molitor:
Barley worm:
3. Different nutritional values
Tenebrio molitor:
The dried Tenebrio molitor contains 30% fat, more than 50% protein, major elements such as phosphorus, potassium, iron, sodium and aluminum, and various trace elements. Because the dried Tenebrio molitor larvae contain about 40% protein, the pupa contains 57% protein and the adult contains as much as 60% protein, it is called "protein feed treasure house".
Wheat worm: its nutritional value far exceeds that of larvae crickets and Tenebrio molitor, and it contains a lot of trace elements necessary for human body.
Baidu encyclopedia-Tenebrio molitor
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