62 Dr. A. G. Butler on 



27. Teracolus imperator^ Butler. 



Dry form.— ? , Mpoiidas 18tli April. 



The female ot" this phase is new to the Museum. 



28. Teracolus dissociatus, Butler. 



(S S } Likoma, May. 



We previously only possessed one male of the wet pliase 

 of this species. 



29. Teracolus pseudetrida, Westw. 

 (J ? , Matope, 13th April ; ? $ , Mpondas, 18th April. 



30. Teracolus xanthus, Swinh. 

 ^ (wet phase), Mpondas, 18th April. 



3 1 . Teracolus gavisa , Wallgr. 



? $ (wet phase), Matope, I3th April; Likoma, May. 



32. Teracolus omphale, Godart. 

 c? c^ ? ? , Mpondas, 18th April. 



33. Teracolus callldia, Grose-Smith. 



(5^ ? , Matope, 13th April; ?, Likoraa, 26th April; 

 J cJ ? ? , Likoma and Chisuraulu, May. 

 Three of the females are of the yellow-tipped type. 



34. Teracolus niutans, Butler. 



? , Matope, 13th April ; S , Mpondas, 18th April. 



1 find that the Nyasa species is undoubtedly distinct from 

 the Natal one, that T. mutans is the wet phase, of which 

 T. rhodesina is tiie intermediate, and of which I have recorded 

 the dry phase (as probably intermediate). T. argillaceus^ 

 the representative of T. vesta in South Africa, seems to stand 

 alone in the group as regards the colouring of the under 

 surface in its dry phase. T. mutans is, in fact, the East 

 (>ential representative of the more northerly T. catachrysopsj 

 from which it differs above in the distinctly broader and 

 larger spots of the discal series on the upper surface of the 

 secondaries and the different character of its intermediate and 

 dry phases on both surfaces. 



