72 Mr. Roland Triinen on some Neiu 



Considering that it is over forty years since the discovery 

 of Deloncura in South Africa, and over thirty-five since I 

 published in oar " Transactions " the discoverer's account 

 of the habits of I), immaculata, in the only locality and on 

 the only occasion recorded for its appearance, great interest 

 attaches to the following details relating to the new 

 Nataliau species, communicated to me by Mr. Millar. He 

 writes under date of the 9th June, 1905 : — " On hearing 

 that three more specimens had been taken on 30th April, 

 1905, about the same place where Jeffery took his example, 

 several of us went in search of the butterfly ; and on the 

 7th May we managed to secure no less than eigiit 

 specimens, gome of which were fresh from the pupa, and 

 three of which were captured by myself The weather 

 being windy, the butterfly was not active ; but on passing 

 the tree where previous captures had been made, one of 

 our party distui'bed the branches, and out flew about a 

 dozen. They took short flights, but at an elevation of 

 about fifteen feet, and like Liptcna aslanga settled on twigs 

 and dead branches, where the assimilation of the under- 

 side colouring rendered them difficult of detection. Tlieir 

 flight was slow and wavering, resembling that of a day- 

 flyiug moth of the same colouring which flew in the same 

 locality ; and so strong was the likeness of the butterfly to 

 the moth on the wincj that on several occasions great 

 efforts were made in capturing what was thought to be 

 the former but turned out to be the latter. I send you a 

 specimen of the moth in question. All the specimens of 

 the butterfly were found about one tree, which I think it 

 probable is the food-plant." 



This account agrees very remarkably with the observa- 

 tions on D. iinmaculaia made by Col. Bowker, who 

 particularly noticed the resemblance, both in colouring and 

 flight, of the butterfly to the "yellow tree-moth," common 

 in wooded spots. 



Several species of the Liparide genus Aroa, Walk., are 

 numerous and widely distributed in South Africa. The 

 species forwarded by Mr. Millar as that with which D. 

 millari associates at Durban, is A. ptinctifera, Walk.,* 

 which occurs also in the eastern part of Cape Colony and 



* Sir G. Hampson (Ann. S.-Afr. Mus., iii, pp. 406-7, 1905) places 

 this species, with some others formerly included in Aroa, in the old 

 genus Enproctis, Hiibn., and limits Aroa to A. discalis, Walk., and 

 one other species. 



