A museum researcher discovers an unknown arthropod specimen. Which taxonomical aid would be LEAST helpful in its initial broad classification?

Which taxonomical aid provide all information about a particular taxon like order or family

… is a book (taxonomic aid) which contain information about habitate, distribution, climate description and index of plant found in a particular area

… is a book (taxonomic aid) which contain information about habitat, distribution, climate description and index of plant found in a particular area

A preserved specimen lacks a label indicating its origin. Which taxonomical aid would be LEAST useful in determining its geographical distribution?

Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?

… is a book (taxonomic aid) which contain information about habitat, distribution, climate description and index of plant found in a particular area