Silkworm life cycle, 4 specimens sunk into the material

MACHINE TRANSLATION (not authorised yet)

In the transparent plastic block there are 4 natural specimens showing the stages of transformation of complete mulberry silkworm:

1 - eggs

2 - larva (caterpillar) on a mulberry leaf

3 - chrysalis in a cocoon (built of one strand of the rump!)

4 - butterfly (perfect insect - imago)

A block packaged in a bubble pocket and placed in a lockable cardboard box. Teaching aid dimensions: 11 x 4.3 x 2 cm.