Art. II.—Note on Chrysophanus feredayi.
[Read before the Philosophical Institute of Canterbury, 4th July, 1900.]
These seems to be some doubt in the minds of entomologists as to what is the insect described as Chrysophanus feredayi by Mr. H. W. Bates. Mr. G. V. Hudson, in his “New Zealand Moths and Butterflies,” says that it appears to be a variety of C. salustius (pp. 116, 117), and he includes C. rauparaha, of Fereday, as a variety also.
As the collection of the late Mr. Fereday has come into the possession of the Canterbury Museum, I am in a position to clear up this ambiguity, for the collection contains the type of C. rauparaha and a cotype of C. feredayi.
The following is the original description of C. feredayi, by Mr. Bates:-
“C. ednæ, Doubled., simillimus; differt palpis antice griseoalbo et nigro hirsutis, alis posticis subtus brunneo nebulosis, ♂ ♀.”
” Similar in size, form, and colours to C. edna, but differs from all the varieties of that species in the palpi in front being clothed with whitish hairs mixed with black instead of yellow hairs. The black marks of the upper surface are also larger and more confluent, and the under-surface of the hind wings is yellow, with a broad curved discal patch and a wide posterior border (confluent at the apex) violet-brown. The wings above are violet-black, with the discal area and a macular belt of six quadrate spots on both wings shining-fulvous, the discal area in the fore wing being divided by three spots and the black nervures, and on the hind wing by one spot. There is a submarginal row, also of three fulvous spots, near the anal angle of the hind wing, and the basal fourth of both wings is clothed with tawny-brown hairs.
Both sexes are alike in colours and markings.”
This description agrees accurately with the cotype in the collection. It also agrees with the description and figures of C. enysi by Mr. A. G. Butler, and no doubt the two are identical.
The species described and figured by Mr. Butler as C. feredayi is a different species, and is identical with the C. rauparaha of Mr. Fereday. Mr. Hudson thinks that this is only a variety of C. salustius, but it can be distinguished from that species not only by the fuscous shade of the lower surface of the hind wings, but by the palpi, which are white,
with, long black hairs as well as a few white ones, in this respect resembling C. feredayi. But from C. feredayi it differs in the colour of the lower surface of the hind wings, and in the male and female being unlike, as in C. salustius.
The following is the synonymy as well as references:—
C. feredayi, Bates, Ent. Mo. Mag., vol. iv., page 53, Aug., 1867.
C. feredayi, Fereday, Trans. N. Z. Inst., vol. x., p. 255, pl. 8, figs. D and 3 (1878).
C. enysi, Butler, Ent. Mo. Mag., vol. xiii., p. 153, Dec., 1876; Trans. N.Z. Inst., vol. x., p. 274, pl. 12, figs. 4 to 6 (1878); Cat. Butterflies of N.Z., p. 16, pl. 3, figs. 10 to 12, Christ-church, N.Z. (1880).*
C. enysi, Hudson, “New Zealand Moths and Butterflies,” p. 117, pl. 12, figs. 22 to 24 (1898).
C. feredayi, Butler, Trans. N.Z. Inst., vol. x., p. 275, pl. 12, figs. 7 to 9; Cat. Butterflies of N.Z., p. 17, pl. 3, figs. 7 to 9 (1880), (not of Bates).
C. rauparaha, Fereday, Trans. N.Z. Inst., vol. x., p. 255, pl. 8, figs. E and 4 (1878).
C. salustius, Hudson, “New Zealand Moths and Butterflies,” pl. 12, fig. 21.
[Footnote] * In both the last descriptions there is a misprint. On page 274, line 4 from the bottom, the word “female” should be omitted.