In the species belonging to this group the subdorsal line may be more or less retained. Thus, _C. Celerio_, according to Hübner’s figure, has a broad yellow line extending from the horn to the sixth segment, whilst it is completely absent on the three front segments. In the unnamed species from Port Natal[80] the subdorsal line extends to the front edge of the fifth segment, and on the fourth segment only is there a perfect eye-spot, whilst on the succeeding segments traces of such markings can be recognized as dark spots similar to those in _Elpenor_ and _Porcellus_. The transition to the third group is through another unnamed species from Mozambique,[81] in which rather large eye-spots have become developed on the fourth and fifth segments and these are followed by a subdorsal line, which only appears distinctly at certain places. On this broken subdorsal line, and not completely separated from it, there are small, roundish eye-spots, situated near the front edge of each segment; these being, therefore, a somewhat more perfect repetition of the front eye-spots.[82] GROUP 3.--In the species of this group the eye-spots are repeated on all the segments. I am acquainted with seven such _Chærocampa_ larvæ, of which _C. Bisecta_, Horsfield,[83] shows some affinity to the foregoing group, since the eye-spots on segments 6-11 have not yet attained full perfection. In _C. Odenlandiæ_, Fabr.,[84] and in _C. Alecto_ from India,[85] the eye-spots appear to be perfectly alike on all the segments; whilst in _C. Acteus_, Cram.,[86] and in the North American _C. Tersa_[87] (Pl. IV., Fig. 35) they are smaller on the other segments than on the fourth; and in _C. Celerio_, Linn., from India,[88] the size of the spots diminishes from the head to the tail. In this group also the subdorsal line is retained in a very variable degree. In some species it appears to have completely vanished (_C. Acteus_, _Celerio_); in others it is present as a light stripe extending along all the segments (_C. Alecto_); whilst in others it is retained as a broad white stripe, which extends only to the fourth segment (_C. Tersa_, Fig. 35). In species possessing eye-spots, the subdorsal line is thus a very variable character. It is, however, an interesting fact that even in the present group, which has made the greatest step forward, the subdorsal line is of general occurrence, because the eye-spots in all these species may have almost a similar development to those of _Elpenor_ and _Porcellus_. The ontogeny of the tropical species would alone give a definite reply on this point, but unfortunately we are not acquainted with any of the young forms, so that we can but presume that some of them at least would show only in the first stage the simple subdorsal line without eye-spots; that in the second stage the primary pairs of eye-spots would be formed on the fourth and fifth segments, whilst the transference of these spots to the remaining segments would take place in the last stage.