274 MR. C. t. M. SWYNNERTON ON TUeI 



Exp. 56. — June 29. Hungry ; tasted and rejected Acrcea serena, and after 

 it with far more marked disgust its larva. 

 [1.-4. Serena, imago. 

 2. Its larva.] 



Exp. 67. — June 30. Refused to touch another grasshopper at the end of a large 

 feed, by the forceps, of chiefly these insects, in spite of my best endeavours to tempt 

 her. She now took but tossed carelessly away into the air a Freds cebrene, refused 

 without tasting a Precis archesia, refused, then tasted and rejected a Byhlia, but, 

 attracted by the movements of a Char axes neanthes, leant forward after for some 

 time ignoring it and took, crushed, and swallowed it with evident approval. She 

 now once more refused Precis cebrene, this time without tasting, was attracted by 

 a fluttering Gegenes and tasted and rejected it ; refused without tasting a, Uespei-ia, 

 tasted after first ignoring it a Precis tugela © f., and, evidently liking it greatly, 

 crushed and at once swallowed it, and I'eadily accepted, crushed, and swallowed 

 the Precis archesia and P. cehrene before refused. She then tasted and rejected, but 

 on my again offering it crushed and tasted very thoroughly and finally swallowed 

 the Gegenes reofiered, but looked quite doubtful about it, refused but then leaning 

 forward tasted slightly and rejected a Neptds saclava, refused persistently without 

 tasting an Yjithima and an ^crtea-like Baoris, but after at first refusing it 

 tasted, crushed, and readily swallowed a newly-emerged Atella phalantha. She 

 now refused without tasting Hamanumida dcedalus, Pyrameis cardui, and one of 

 her favourite grasshoppers, but was tempted nevertheless by a P. archesia which 

 she crushed and readily ate. After it, with equal readiness, she ate a Precis 

 natalensis © f. 



After an interval I ofi'ered and the bird, noticeably hungrier, crushed and ate 

 without hesitation Pa2nlio lyceus, Leuceronia thalassina $ , and the Byhlia 

 previously rejected, but she tasted and at once rejected Nejytis saclava. 



[Summary, etc. : — (1) Note at the time : " The bird was utterly replete, so much 

 so that its acceptance under such circumstances of Precis archesia, P. natalensis ©, 

 P. tugela, Atella j^ho'ia.ntha, and Gharaxes neanthis would indicate that these five 

 butterflies are exceedingly high-grade. The Gegenes was less liked." 



(2) Grades : — 



1. P. archesia © f. 



2. H.' dcedalus, P. car did, and a favourite grasshopper. 



At first sight it would seem that many moi'e preferences were shown, but I fear 

 I cannot regard them as necessai'ily quite reliable. Thus C. neanthes, P. tugela, 

 and A. phalantha were each eaten after initial refusal : might not the i^efusals of 

 their respective predecessors have been turned into acceptances by just that extra 

 amount of coaxing ? And P. archesia, P. cehrene, and P. natalensis © f . were each 

 eaten after a possible whetting of the appetite. In the offerings after the interval 

 the acceptances came first and the one refusal after them, so nothing can fairly be 

 ded viced.] 



Exp. 68. — July 3. Tasted and at once rejected Mylothris agathina $ , Mylothris 

 rueppelli, and Mylothris yulei, but readily ate after crushing them Phrissura 



