[96] [In concluding this account of the _Chærocampinæ_ I may call attention to the following species, which have since been figured by Burmeister:--_Pachylia Ficus_, Linn. (_loc. cit._ Pl. XIV., Figs. 1 and 2); during the three first stages the larva is uniformly green, with a yellow subdorsal line, and below this ten oblique yellow stripes slanting away from the head; after the third moult the colour completely changes, the whole area of the body being divided into two distinct portions by the subdorsal line, above which the colour is red, and underneath of a pale green; the oblique stripes have almost disappeared; no occelli nor annuli are present. _Pachylia Syces_, Hübn. (_loc. cit._ Fig. 3); very similar to the last species in its young stages (figured also by Mérian, Surin. pl. 33). _Philampelus Vitis_, Linn. (_loc. cit._ Figs. 4 and 5); two stages represented; between first and second moults green, with oblique paler stripes slanting in same direction as in _Pachylia_, and each one containing a red streak surrounding the spiracle. When adult, the ground-colour is yellow above and green beneath, the whole surface being mottled with deep black and red transverse markings; the oblique stripes whitish, bordered with black at their lower extremities (figured also by Mérian, pls. 9 and 39). _Philampelus Anchemolus_, Cram. (_loc. cit._ Pl. XV., Fig. 1; Mérian, pl. 47); green when young, with seven oblique red stripes; when adult, uniformly brown, with seven pale yellow lateral markings, the first four of which are spots, and the remainder broad oblique stripes slanting forwards. _Philampelus Labruscæ_, (see note 82, p. 195). R.M.] [97] [_Mimas Tiliæ_ of Butler’s revision. The author states that this genus is “easily distinguished from _Laothoë_ by the form of the wings, the outer margin of secondaries deeply excavated below the apex, and the secondaries narrow and not denticulated.” Here again we have a clashing of the results arrived at by a study of the ontogeny of the larvæ, on the one hand, and the founding of genera on the characters of the imagines only, on the other. Of the three species discussed by Dr. Weismann, Mr. Butler, following other authors, refers _Tiliæ_ to the genus _Mimas_, _Populi_ to _Laothoë_, and _Ocellatus_ to _Smerinthus_. It is to be hoped that when our knowledge of the developmental history of larvæ is more complete in all groups, a reconciliation between the results of the biological investigator and the pure systematist will be brought about, so that a genus may not, as at present, have such very different values when regarded from these two points of view. R.M.] [98] The caterpillar is thus figured by Rösel.