
Art. LIX.—Brief observations on the genus Chrysophanus, as represented in New Zealand.
[Read before the Philosophical Institute of Canterbury, December 5th, 1876.]
In a paper read before this Institute on the 11th of October, 1871, * I took occasion to state that there were three, if not four, distinct species of Chrysophanus found amongst the butterflies of New Zealand; and, in making such statement, the species Boldenarum, which has since been placed by Mr. A. G. Butler under the genus Chrysophanus, † was not taken into account, as it then stood recorded, on the authority of Mr White, by whom it was named and described, as of the genus Lycœna.
[Footnote] * “Trans. N.Z. Inst.,” Vol. IV., p. 214.
[Footnote] † “Cat. Lep. N.Z.,” p. 3.

Subsequent observations convince me that my conclusions were correct; and that there are five, or at least four, distinct species of Chrysophanus inhabiting New Zealand, if characters which have hitherto been generally allowed to constitute distinct species are to continue to be accepted as such, and not as constituting mere varieties.
Mr. Butler * quotes me as thinking there may be three species, but appears rather to doubt the distinctness of C. feredayi, which Mr. Bates named and described as a distinct species. † Mr. Butler, however, admits that he had not seen the insect so named, and I have no doubt his opinion will be changed when he has had an opportunity of comparing C. feredayi with Lycœna edna of Doubleday, which he identifies as Hesperia R. salustius of Fabricius, and places in this genus.
At present I propose to point out a few of the differences which mark the several species or varieties, reserving for a future paper a full description, to be accompanied by drawings, illustrating the distinctive characters of each form.
The several forms may, for convenience, be indicated respectively by the letters A B C D E F and G, A being represented in Mr. Butler's “Cat. Lep.N.Z.,” p. 3. Tab. 1, Figs 1 and 2, as C. salustius, female, which he believes to have been described by Mr. Doubleday as edna, and by Fabricus as salustius; C being represented as C. salustius, male. ‡ The sexes are not distinguished in the catalogue, but Mr. Butler has informed me that Figs. 1 and 2 represent the female, and Figs. 3 the male of C. salustius, and G being represented as C. boldenarum. §
A (female). That this is the female of the same species or form as that of which C is the male I cannot believe. In fact there is fair proof to the contrary, unless I am in error in the identity, which appears to me very clear, of A with the insect figured 1 and 2 in Mr. Butler's catalogue, for I have repeatedly found A in company with B—the strongest evidence of A and B being respectively the female and male of one species or variety. The nervures of the wings of this form are margined and irrorated with the same colour as the dark markings; pale violet pupils more or less present in the marginal macular band; the under side of the secondary wings saffron yellow.
B (male). Differs very little from A, the dusky basal shade being extended further over the wings in A than in B.
C (male). Very distinct in shape and contour of wings, which are
[Footnote] * Loc. cit.
[Footnote] † “Ent. Mon. Mag.,” Vol. IV. p. 53.
[Footnote] ‡ Loc. cit., Fig. 3.
[Footnote] § Loc. cit., Figs. 8 and 9.

broader, in comparison with their length, than in the other forms; the copper colour is more brilliant and lustrous; the dark markings are fewer and smaller; the nervures are only margined with the colour of the dark markings, and there are no violet pupils in the marginal macular bands. I have never met with this form but in one locality—at Wellington, where I took about a dozen specimens, which were unaccompanied by any of the other forms. They and two other specimens received from Hawke Bay are all that I have seen.
D (C. feredayi). I have both male and female of this form. In shape, colour, and markings of the wings the sexes do not appear to differ, the shape resembling that of A, the ground colour being pale fulvous; the dark markings much broader than in any of the other forms; secondaries below clouded with brown. With the exception of a few scattered specimens I have found this insect only in two localities, namely, Kaiapoi Bush, near Christchurch, and a bush near Mount Torlesse, both of which bushes are situated on the Canterbury Plains, and their vegetation is similar in character. The former bush, which afforded excellent entomological collecting ground, has, alas! disappeared, and cultivated fields now occupy the place where but a few years ago stood a dense forest.
E (male). Ground colour of wings copper, but duller than that of C; hind margin of primaries considerably more oblique and less rounded than in any of the other forms; costa somewhat concave beyond the middle; dark markings larger than in C, but smaller than in the other forms; nervures same colour as dark markings; no violet pupils in the marginal macular bands; under side of secondaries fuscous.
F (female). Basal shade rather darker, and dark markings rather larger than in E, but in other respects similar to that form. I have only seen two specimens—one I took at Kaiapoi Bush at the same time as the specimen of E, and the other in a lane near Christchurch, fourteen miles from Kaiapoi Bush.
G (C. boldernarum). There is no question as to this being a distinct species. See Mr. Butler's description. *
In conclusion, I would call attention to the fact that I have found forms A and B common in almost all parts of New Zealand that I have visited, but the other forms (excepting G) extremely local and by no means abundant.
Relying upon the ultimate establishment of the above forms as distinct species, or permanent varieties, I propose to give to C the name of Maui, after the celebrity who, according to Maori mythology, fished up the islands of New Zealand; and to E the name of Rauparaha, after the Maori chief
[Footnote] * Loc. cit.

Te Rauparaha, of the history of whose life the siege and capture of Kaiapoi Pa occupies a prominent part.
