According to dichotomous key, the insects with two pairs of scaly wings belong to order Lepidoptera.
What is dichotomous key?
- "A dichotomous key is an important scientific tool, used to identify different organisms, based the organism's observable traits."
- It has sequenced and structured identification steps.
What do you mean by order?
- "A taxonomic rank used in classifying organisms, generally below the class, and comprised of families sharing a set of similar nature or character."
What is Lepidoptera?
- It is an order of insects consisting of mainly butterfly and moths.
- 'Lepidos' means 'scale' and 'pteron' means 'wing'.
Hence, the correct option is B. Lepidoptera.
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