Metamorphosisby Horticulturist Susmita | 28-03-2020 03:50 |
|---|
 Metamorphosis It is a process in which there is change of form i.e. associated with each moulting during development of insect that means often each moult the insect change in form. This change is known as metamorphosis. It is of three types- 1. Ametamorphosis or ametabolous- In this case there is no change of form i.e., the stage that comes out from the egg completely resemble with the adult one e.g., silverfish insect. 2. Incomplete metamorphosis or hemimetabolous- this type of development is mostly seen in lice, tick, mite, bedbug and cockroach. In this case the form results after each moult partially resemble with each other or sometimes greatly resemble, sometime they only different between the young and adult one are the genital organ and the wings. The stage that comes from the egg is known as the larva, which moults to 1st stage nymph- 2nd stage nymph- 3rd stage nymph – Adult. Complete metamorphosis or holometabolous- In this case there is complete change of form between the stages that result after each moult. Hence different names are given to each stage e.g. egg- larva- pupa – Imago. Each stage is completely different from the other one e.g., Dipterous fly- mosquitoes, butterfly etc. I have clicked the stages of butterfly i.e. caterpillar stage and butterfly stage during it's period of metamorphosis. It shows complete metamorphosis which is complete change in the form. Green cheers!
|
