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Paraneoptera

At first sight the Paraneoptera might appear to consist of a rather disparate group of insect orders, namely the true bugs, lice, book lice and thrips, but the monophyly of this group is generally accepted on both morphological and molecular characters. The exact relationships between the constituent orders are not as clear, though the Psocoptera and Phthiraptera probably form a monophyletic pair, the superorder Psocodea. There is even some controversial evidence that the Psocoptera may not be monophyletic, and that the Phthiraptera evolved from a psocopteran subgroup. Whether the Thysanoptera are more closely related to these, or to the Hemiptera, is not certain, but some authors combine them with the Hemiptera in the superorder Condylognatha.

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