1865. ] MR. J. H. GURNEY ON A NEW HARRIER. 823 
Puate XLII. 
Fig. 1. Satarupa gopala, 3, p. 780. | Fig. 5. Vithora indrasana, p. 795. 
2. Darpa hanria, p. 781. 6. Philopator basimaculata, p.800. 
3. Capila jayadeva, $, p. 785. 7. Cadphises maculata, 8, p. 801. 
4, Pisola zennara, p. 786. | 8. Canerkes euschemoides, ? ,p.802. 
Puate XLII. 
Fig. 1. Grotea elegans, 9, p. 797. Fig. 6. Bharetia cinnamomea, g ,p.820. 
2. Heracula discivitta, p. 804. 7. Gangarides dharma, 8, p. 821. 
3. Paravetta discinota, p. 814. 8. Drepana duplexa, p. 816. 
4. Anodonta pulcherrima, p. 814. | 9, Bizone divakara, 8, p. 798. 
5. Stauropus sikkimensis, p. 811. | 
13. On a New Species or Harrier FROM New CALEDONIA. 
By Joun H. Gurney, F.Z.S. 
(Plate XLIV.) 
Some time since, I received from M. EK. Verreaux, of Paris, two 
specimens of the Harrier of New Caledonia, which appear to me to 
belong to an undescribed species very nearly allied to, yet distinct 
from, the Harrier found in Joanna Island and in the Island of Ré- 
union, to which M. Jules Verreaux has given the name of Circus 
maillardi, and which was figured and described in the first series 
of the ‘ Ibis,’ 1863, p. 163. 
I propose to assign to this new species the name of my friend 
Mr. Wolf, to whose talented pencil all students of zoology, and 
ple ees those who study the birds of prey, are so greatly in- 
debted. 
The specimens of Circus wolfi which I have received from M. 
Verreaux appear to me to be both males, one evidently in the 
plumage of the first year, the other adult or nearly so. 
On comparing the latter with an adult male of Circus maillardi 
recently obtained in Joanna Island, and liberally presented to the 
Norwich Museum by Mr. Edward Newton, I can find little or no 
difference in size or form, except that the quill-feathers of the wings 
and tail are slightly broader in CO. maillardi than in C. wolf, and 
that the proportionate length of the primaries in the two species 
does not appear identical. 
In both species the third primary is the longest, the fourth next, 
and then the second; but in Cireus maillardi the fifth equals the 
second in length, whilst in C. wolfi it falls decidedly short of it ; 
again, in C. maillardi the sixth primary is slightly longer than the 
first, whilst in C. wolfi the relative proportions of these two fea- 
thers are reversed. 
The colouring of the upper part of the head and neck, also that 
of the back, rump, and upper side of the wings, is extremely similar 
in both species ; but it is slightly darker in the adult males of Circus 
maillardi, and the contrast between the black and grey feathers 
