[page] lxxxv

"Notice of the varieties of Chiasognathus Grantii, forwarded to Cambridge by C. Darwin, Esq." By C. C. Babington, Esq., M.A., F.L.S., &c.

Of the twelve specimens of this inscct sent home by Mr. Darwin, several were scarcely more than half the size of the others, but differed in no other respect, the proportion between the mandibles and body being the same in all. The hook at the apex of the mandibles is not much marked in some of the specimens, only appearing as a uniform curve, by which the tip is brought into a vertical position. This does not depend upon size, some of both the large and small specimens having the hook and others wanting it. The scutellum is thickly and minutely punctured. The Tetrophthalmus chiloensis of Lesson is without doubt the same insect as this; that name must therefore fall. The individuals sent home by Mr. Darwin were taken in the island of Chiloe, on the south-west coast of South America.

[page] lxxxvi

Mr. Darwin also informed the writer that he had taken in that island many species of small insects belonging to European and English genera.

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"A Selection of Entomological Notices." by C. Darwin, Esq.; addressed to Professor Henslow, and communicated by W. Christy; jun., Esq.