Mr Newman, we think with great justice and propriety, restores the expressive term and excellent group " Insecta," and regards the binary division of the group into Mandibulata and Haustellata as utterly futile ; and really, when we reflect that, to sustain such an artificial division, it is necessary to suppose facts which have no existence, we may be allowed to hesitate, before bending the knee to any authority however great.

Mr Kirbys order Trichoptera, the leading character of which, as given by himself, is " Emandibulate," cuts but a sorry figure amongst the mandibulate insects ; where it seems placed more to eke out the number five, than for any more laudable purpose.

The genus Thrips, again, although de- cidedly mandibulate, has been for some similar reason termed haustellate, and placed with the Aphides, It is to be lamented that our publishing entomologists, Messrs.

Stephens and Curtis, unhesitatingly adopt these and other glaring inconsistencies.

In the arrangement of the class Lepidoptera, Mr Newman , complains with justice of the carelessness which has been hitherto manifested ; authors appearing to regard the insects which compose it as too diversified to be brought under any arrangement which does not abound with anomalies.