On the Fieri ae Genus Huphina. 201 



Phreatoicus which I have elsewhere suggested may be looked 

 upon as an " epipodite " *. 



This paper was commenced in the zoological laboratory of 

 University College, Dundee ; and I have to record my best 

 thanks to Professor d'Arcy W. Thompson, C.B., for kind 

 permission to make free use of his collections, and to 

 Mr. W. T. Caiman for assistance in this and other matters. 



EXPLANATION OF PLATE VIII. 



Fig. 1 ant. Outer antenna of a male specimen of Ligia oceanica, 25 mm. 



long and 12 mm. broad. X 6. 

 Fig. 1 prp 2 . Second peiseopod of the same specimen. X 9. 

 Fig. 2 ant. Outer antenna of a female specimen, 24 mm. long, 10 mm. 



broad (brood-pouch full of eggs). X 6. 

 Fig. 2 prp 2 . Second perasopod of the same specimen. X 0. 

 Fig. I pip 1 . First pleopod of male, posterior aspect. X 19. 

 Fig. 1 pip 2 . Second pleopod of male, posterior aspect. X 19. 



XXXII. — A Rtvision of the Pierine Genus Huphina, with 

 Notes on the Seasonal Phases and Descriptions of new 

 Species. Bv Arthur G. Butler, Ph.D., F.L.S., 

 F.Z.S., &c. 



The present genus is one of the most pleasing in the sub- 

 family Pierina?. It is related to Ganoris and Pinacopteryx, 

 but some of the species show apparent affinity to Catophacja 

 (from which, however, the absence of the anal tuft in the 

 males would readily serve to distinguish this sex). It sepa- 

 rates into two well-defined groups, the first of which commences 

 with forms resembling Catophaga and having well-defined 

 seasonal phases, but terminates with forms more nearly 

 resembling Delias in which seasonal phases are possibly non- 

 existent. The second group in its colouring reminds one of 

 Delias, Catopsilia, and Ganoris, but concludes with species 

 having an under- surface colouring peculiar to this genus 

 alone. The seasonal phases when known are less pronounced 

 in their distinctive characters than in the earlier forms of the 

 first group, and vary somewhat in the subgroups having the 

 coloration of the genera above noted; those which remind 

 one of Delias seem to have no defined seasonal phases. 



* See Trans. Liun. Soc, Zool. ser. 2, vol. vi. part 2, pp. 195 & 203; 

 and ' Records of the Australian Museum,' vol. i. p. 164. 



