EXPLANATION OF FORM ANT) COLOUEING. 2fi7 



probably — as in nearly every experiment — the result of having eaten so many. 

 Had better flies been used for " filling up," it is probable that the favourite 

 grasshoppers would have been taken in preference to the favourite butterflies.] 



Exp. 47. — June 22. Early in the day, before being fed, very hungry, had refused 

 without tasting Acrcea serena and Acrcea asema, also Danaida chrysippus — a testi- 

 mony to their very low grade. 



She now, considerabl}'^ less hungry, refused without tasting and with shakes of 

 the head Acrcea serena ; refused, then tasted very slightly and with the greatest 

 weariness and threw aside a Danaida chrysippus, refused without tasting a Terias, 

 but tasted and readily ate an Ypthima. 



I now gave her three migratoiy locusts, after which she obstinately refused to 

 touch either Lainpides hcetica or an Ypthima. I therefore gave her an enormous 

 mixed feed of migratory locusts, various grasshoppers, crickets, etc., and termites, 

 and when she was thoroughly replete and would touch no more of any of them I 

 offered her a Charaxes neanthes. Either through sheer repletion or from suspicion 

 of the fulvous wing-colour (reminiscent of Atella?) she would not touch it, but a 

 few seconds later was tempted by a Pyrameis, which she ate. I then ofiiered Precis 

 ceryne f . The bird at first refused it, but as I continued to hold it to her, tasted 

 it slightly and, evidently attracted, took it, crushed it thoroughly and swallowed it. 

 and directly after tasted well and readily swallowed a Charaxes neanthes. I now 

 oiFered an Ypthima which she took and tasted, but at once threw away with 

 marked dislike, wiping her bill vigorously on the perch, 



[Summary : — 



1. P. cardui (possibly P. ceryne and C. neanthes). 



2. Favourite grasshoppers, crickets, migratory locusts, termites, 



and C neanthes (or A. phalantha if the neanthes was 



mistaken for this). 



T 1 ,. f 3. Ypthima. 



L. ocettca. i _, ^ . -, 



I 4. Terias, A. serena, A. asema, D. chrysippus.] 



Exp. 48. — June 2.3. Hungry ; refused obstinately without tasting Acrcea serena ; 

 refused, then tasted in a very gingerly way and rejected Mylothris ruepp)elli and 

 Mylothris yulei ; tasted rather better, then rejected Nyctemera leuconoe. 



[Possibly, on manner, we get : — 



1. N. leuconoe. 



2. M. rueppelli and yulei. 



3. A. serena. 



But this is, at best, doubtful. At any rate, all were obviously very low-grade.] 



Exp. 49. — June 24. Moderately hungry at the start. I gave her all the meat 

 she would eat (two smallish lumps) and then by hand a number of various grass- 

 hoppers until she at last obstinately refused to touch any more. I waited five 

 minutes and again ofiered grasshoppers, but the bird held the first in its bill a 

 considerable time before swallowing it and then refused all others. I next offered 



LINN. JOURN.— ZOOLOGY, VOL. XXXIII. 20 



