( xi ) 



wings, but its red thorax is very conspicuous, and in the 

 only valley I have found it (the only place, I think, where it 

 has been seen in any numbers) it used to be out in the early 

 spring with agestor, and looked distinctly like it. 



" 2. Some points in the mimetic resemblance of the Nym- 

 phaline Parhestina jermyni, H. H. Bruce, to the Pierine Aporia 

 agathon, Gray, race phryxe, Boiscl. — One specimen of P. jermyni 

 was taken on June 19, 1907, in the Tons valley behind Chakrata, 

 beyond Mussoorie, N.W. Himalayas, with a number of A. 

 phryxe, flying about a small detached clump of trees and 

 shrubs. Another (sent for exhibition) was taken on June 25, 

 1907, further up the valley, flying by itself in bold circles of 

 half a mile or so, round the junction of a smaller stream with 

 the Tons. It was obviously not A. phryxe, and was secured 

 on its third circle. One of the specimens of p)hryxe shown was 

 taken with the first Parhestina on the 19th, the other in the 

 same neighbourhood later. The Parhestina forms an interest- 

 ing contrast with Papilio agestor, because in the Nymphaline 

 mimic the apparent size of the f.-w. cell has to be increased 

 and not reduced as in the Swallowtail. The bars across the 

 middle and end of the cell of P. persimilis, Westw., have 

 disappeared entirely in jermyni, but there is a dusting of 

 black scales to indicate the end of a larger cell. It may be 

 inferred by comparing the sexes of persimilis that this latter 

 marking, which has been regained or retained by jermyni, was 

 the first of the three f.-w. bars to undergo reduction. The 

 black dusting beyond the cell is undoubtedly useful in in- 

 creasing the resemblance to the Aporia model, although as 

 yet not nearly so dark. It is identical in both specimens, 

 and can be clearly seen in Plate XXIX, fig. 1, of Trans. Ent. 

 Soc, 1911, p. 187, where P. jermyni is described by Mr. H. H. 

 Druce. 



" 3. Use of proboscis of Parhestina persimilis, Westw., in 

 mimicry of Aporia caphusa, Moore. — I have watched at 

 Mussoorie (4-6000 ft., 1906) one or two individuals of P. 

 persimilis drinking with a crowd. of A. caphusa. The resem- 

 blance is distinctly enhanced by the yellow proboscis of 

 persimilis, which harmonises with the yellow spot at the base 

 of the hind-wings in caphusa. This spot shows up much 



