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Show 234 MR. E. B. POULTON ON THE PROTECTIVE [Mar. 1, TABLE A Various classes of Colours. (When incompletely described in this column. the correct details are given in the columns to the right). VI. Black, red, blue, and white. 1 form. VII. Brown, yellow, and black. 1 form. VIII. Green, yellow, and black, or green, black, and yellow. 4 forms. Dark Ground-colour and Lighter Secondary Colours. Species. Larva of C. neustria. Larva of H. defoliaria. Ground-colour. Difficult to determine upon, but probably black, because it occurs so frequently between the other colours and mixed with them ; also underside is dark. Reddish brown. I Colour next in importance. 1 Orange-red. 1 Yellow. 3rd colour. Blue. Black. 4th colour. White. and simple patterns which are in this case especially adapted for the respective stages of the various nauseous or dangerous insects. Ring-patterns.-Especially suited to tbe cylindrical body-form, such as that of larvae, pupae, or of imagos with colourless wings (Hymenoptera & c ) . Accordingly we find this pattern developed in such stages, and it is also often suggested on the visible part of the body of other forms. Longitudinal Stripes.-Also especially suited to the cylindrical body-form, and accordingly it is entirely found in larvae and in the attenuated imagos of the genus Telephorus. Spots.-Especially suited to a wide coloured expanse, such as that provided by the wings of Lepidoptera or the elytra of many Coleoptera, but also fairly adapted to the cylindrical body-form, and accordingly it is characteristic of conspicuous Lepidopterous and Coleopterous imagos, only two of the four included larvae possessing |