002 DR. A. G. BUTLER ON BUTTERFLIES [NoV. 29, 



later. I think, therefore, that this bird must have carried its 

 feathers 18 months. 



The dried-up appearance of the small feathers of the back and 

 wings has been already mentioned ; this phenomenon, I regret 

 to say, was not closely watched and no feathers were recovered. 

 There is no doubt that the feathers became brown and looked 

 like tiny shrivelled leaves. I fully intended to have had some 

 collected, but did not act at once and the opportunity was lost. 

 These feathers adhered to the outer surface of the wings till the 

 moult was complete, and these were the last vestiges of the former 

 plumage to disappear. Whether these feathers actually shrivel or 

 whether they are slimed over and then dry up to this form must 

 be proved by further investigation. 



I am not aware that the shedding of the epidermis of the coloured 

 portion of the mandibles of this bird has before been noticed, and 

 I know of no parallel as a part of the moult, though the annual 

 shedding of the wart-hke excrescences on the bill of the Eough- 

 billed Pehcan {Pelecanns trachyrhynclius) and the shedding of the 

 peculiar nuptial mask of the PuflSn {Fratercula arctica), which had 

 been described by Dr. L. Bureau (Bull. Soc. Zool. France, 1S77, 

 ii. p. 377), are well known. 



5. On a Collection of Butterflies almost entirely made at 

 Salisbury, Mashunaland, by Mr. Guy A. K. Marshall 

 in 1898. By Arthur G. Butler, Ph.D., F.L.S., 

 F.Z.S., &c. 



[Received November 2, 1898.] 



The present consignment of Butterflies, with the exception of 

 fourteen examples referable to ten species, was collected at Salis- 

 bury, and therefore is a valuable addition to the Museum series of 

 Mashunaland Butterflies. Mr. Marshall writes :— " I think you 

 will find one or two species among them new to the Museum 

 collection, notably a Baoris and a Eedestes, both of which Trimen 

 pronounced to be pi-obably new when I first sent them to him some 

 four years ago ; but, as he has not referred to them in his recent 

 paper, I presume he has changed his mind. This is the only ex- 

 ample of the Kedestes which I have yet seen in Salisbury ; I first 

 met with it in December 1S94 in the warm Mazoe valley, where 

 I took several examples settling on low herbage on the summits of 

 kopjes ; in habits it is quite like K. macomo. 



"I shall be glad to know the name of the unidentified Mt/calesis ; 

 I have only met with three examples in all round Salisbury, 

 one in April 1895, the others this year. I am somewhat in doubt 

 as to the TeracoU I have sent you labelled ' pallene- for they are 

 practically indistinguishable from the extreme dry form of omphale ; 

 yet the wet form is certainly not omphale, which I do not remember 

 ever to have seen here, but seems referable to pcdlene. The larva 



