17 



iiwrtiinalis, Mot., 1860, " Etudes," vol. ix., p. 29. 

 ? {balciiva, Moore, 1865, '« Pro. Zool. Soc, p. 499, pi. 30.) 



In the discussion which ensued Mr. Frohawk, in referring to the 

 very close affinity in which the species of some genera stood, 

 instanced the form .siiirarocius \n the genus Melanargia in which 

 even the larva differed but slightly from the larva of M. (jalathea, 

 the form suwaroriiis itself being held as a geographical race of the 

 species M. Jai'ijuia. 



Mr. Curwen in exhibiting a considerable number of specimens of 

 the genus I'aran/e from the continent, remarked that P. achine and 

 7'. aegeria were both shade-loving species always flying somewhere 

 in close proximity to trees, while P. uiei/era and P. inaera were sun- 

 loving, flying along sunny walls and cliffs. He pointed out that in 

 the case of the extensive genus Pamassius one had to consider the 

 species it comprised in groups such as the a polio section, the 

 Dineiiiosijne section, etc., which was in fact dividing the genus into 

 sub-genera without designating them by special names. 



Mr. Edwards referred in the same way to another very large genus, 

 that of Papilio, where a similar method of group naming was in 

 vogue, for instance one spoke of the iiiarhaoa group, the ipldclides 

 group, the poli/tes group, etc. 



Mr. Adkin strongly objected to the giving of special names to 

 small groups particularly as they rarely gave an indication of their 

 significance. He was equally averse to the multiplicity of varietal 

 names, names given to every minute aberration, and which in many 

 cases were subsequently found to be ledundant or even absurd. 



Mr. Turner in reply instanced the enormous number of aberra- 

 tional and other names which had been applied to Parnaasius apollo. 

 One of the objects of his paper was to prove the necessity of 

 recognising in some way, that although the species in a large genus 

 were closely allied it was a matter of necessity to, if possible, group 

 them around certain individual species, but at the same time these 

 groups need not be too small nor need they have definite sub-generic 

 names, which in most cases where they have been introduced, as in 

 Pararge, are non-informative and hence are a hindrance to 

 progress. 



