This is one of the pretty warblers of Southern Africa, discovered by Le Vaillant: it is very common and widely distributed in the interior, but rare near the Cape. Le Vaillant mentions having found a young bird of the Criard Cuckoo, in the pigmy nest of this little species, which had already grown to the size of a thrush: it not only filled the nest, but actually enlarged and destroyed its original shape. Yet still did the foster parents, by a most extraordinary instinct, go on feeding this overgrown parasite, although it was even then more than double the size of themselves. Our figure is of the natural size of the male; the female is without the black collar. Specimens are in Mr. Burchell's Museum and in our own. That this bird is of a tenuirostral type, is almost certain; seeing that it is an obvious representation of _Motacilla_, _Pachycephala_, _Tamatia_, _Trichas_, _Charadrius_, and many other collared groups: but whether it forms part of the genus _Prinea_, or represents the tenuirostral genus between that and _Culicivora_, is very uncertain. We suspect that this latter station is filled by the Taylor-Warblers of India, not one of which is to be found in our public Museums. * * * * * * [Illustration: CLYTIA _dissimilis_.] CLYTIA dissimilis, _Idea-likeness Butterfly._ ---- Family Papilionidæ. Sub-fam. Papilionæ. Genus Clytia. ---- GENERIC CHARACTER. Wings rounded, spotted. Anterior broad, ample, the posterior and the external margins of equal length: posterior slightly undulated at the margin, but destitute of tails. Pupa braced, with the head upwards. TYPES. Pap. Clytia, dissimilis. _L._ Pap. Macarius. _Godart._ P. Panope _Cr._ ---- SPECIFIC CHARACTER. _Wings black, the interstices of the nerves pale fulvous white, broken into numerous stripes and spots, inferior wings with a marginal row of orange spots, surmounted by pale lunules, on a black border._ Papilio dissimilis Linn. _Fab. Ent. Syst. 3. 1. p. 38. Ency. Meth. 1. p. 76. Cramer. Pl. 82. C. D. Roemer. Gen. Ins. pl. 18. f. 6._ ---- We have never seen specimens of this Butterfly from any other country than China, although it appears that General Hardwicke has met with it in British India, and has communicated a valuable drawing of the larva and pupa to Dr. Horsfield, in whose interesting work it is engraved. To that plate we must refer the entomologist who wishes to understand the previous states of this insect; while its general aspect at once intimates its resemblance or analogy to the Sub-genus _Idea_ F, and consequently points it out as the generic type of that form in the circle of the _Papilionæ_. According to these views, _Clytia_ is united to _Amphrysius_, by the sub-genus _Epius_; (Pap. Epius. Auct.) and at the same time forms the generic passage to the _Pieridæ_, Sw. For want of a better term, we must call this the _Rasorial_ type, as it corresponds to that Ornithological group.