( Iv ) 



is not noticed by the above authors. This difference may be 

 tabulated as follows : — ■ 



I now submit that the genus Hyades, Bdv., should be re- 

 established. It will comprise the species bioculatus, Guer., 

 and its races pallida, Fruh., charonides, Stgr., charon, Stgr., 

 and charondas, Fruh. 



Stichel associates with these in his group of Bioculatiformes 

 the species gorgo, Kirsch, microps, Grr.-Sm., dimona, Hew., 

 and dina, Stgr., all typical Taenaris, whilst Fruhstorfer 

 further includes in his " Hyades " section the species liors- 

 fieldi. Swains., urania, L., and diana, Butl. 



It is very interesting to note that Taenaris dina, Stgr., and 

 forms of dimona. Hew., closely resemble in pattern forms of 

 Hyades bioculatus; how far we have here to do with a true 

 case of mimicry must remain to be decided. 



The two genera are closely related, and during their de- 

 velopment have maintained the ancestral eye-spot pattern. 

 That this pattern has some protective significance is shown 

 by its being mimicked by the ? $ of certain Satyridae. It is 

 therefore not surprising that though the Hyades forms differ 

 in their structure from Taenaris forms, the pattern of the 

 latter has been retained. 



New Lepidoptera prom the Arfak Mountains, Dutch 

 New Guinea. — Mr. Talbot also exhibited on behalf of Mr. 

 J. J. JoiCEY some new Lepidoptera from the Arfak Mountains, 



