CATDOLL : CATDOLL: How locust embryos develop

Embryonic development of locusts

After mating, the female locust inserts the ovipositor into the soil 10 cm deep and lays about 50 eggs. When laying eggs, the female locust secretes a white substance to form a cylindrical plug, and then lays the eggs.

The eggs of locusts can hatch in about 21 days. The hatched larvae crawl out of the soil. At this time, their appearance is very similar to that of adults, but they have no wings and their body color is lighter. Nymphs look more like adults in the first one or two instars, but their heads and bodies are not proportional. Wing buds grow in the third instar, and the wing buds are very obvious in the fourth instar. In the fifth instar, the nymphs are mature and will crawl onto the plants after feeding for a few days, with their bodies hanging down and waiting for a while before the adults emerge. (Morphology and living habits): Both adults and larvae of locusts can chew the stems and leaves of plants with their well-developed chewing mouthparts.

The hind leg segments of adults have a row of nipple-like protrusions that are equivalent to springs, and the base of the radial veins of the forewings has thick veins that are equivalent to string instruments. When the two rub against each other, the vibration area of ​​the wings can produce sound, which is their sound organ. The locust's auditory organ is also very special, located on the side of the first segment of the abdomen.

I want to ask if all the grasshoppers died in the winter. How do they come out in the summer? It's impossible that they popped out from the cracks in the rocks. They have eggs on the ground and float up automatically when the weather is hot.

The eggs are underground. I don't know how they got into the soil, but cicada eggs hatch in the soil.