302 MK. C. F. M. SVVYNNERTON ON THE 



(b) 1 . Mylothris rueppelli $ . 



2. Nychitona medusa. Nyctemera leuconoe, Aletis monteironis, 

 each probably not appreciably heMer than M. agathina 5 

 01' (with Syntomis cerhera and Planema aganice 9 ) than 

 M. yulei and Osprynchotus flavipes. 



(c) 1. Mylothris yulei. 

 2. 0. flavipes. 



The following note is interesting as showing my impressions at the actual time 

 of carrying out the above few experiments : — 



Note at time : " The following represents my present idea of some of the roller's 

 preferences : — -Papilio antheus ; Papilio lyceus and demodocus ; Pajnlio dardanus d ; 

 Leuceronia argia ; Leuceronia ihalassina S ; Papilio echerioides • Papilio angolanus 

 and Eurytela dryope ; Eurytela hiarbas ; jVeptis agatha. The semicolons represent 

 distinctions that are very small and all probably of about equal value, Papilio 

 angolanus may, however, yet go higher; it is extraordinary that after having 

 dropped in the roller's estimation to the level of Terias it should have so quickly 

 crept up to the neighbourhood of Eurytela dryope."'] 



Exp. 81. — September 3. Crushed and rejected Aletis monteironis, Syntomis 

 cerbera, Acrcea asema, and Danaida chrysippus, but ate a Terias and, after a large 

 number of small grasshoppers, persistently refused to touch JVeptis agatha and 

 Eurytela dryope. 



Fifteen minutes later she tasted and rejected JVeptis agatha, hesitated to taste a 

 wingless Papilio echerioides c? , looking bedraggled and macerated after its crushing 

 by the Kingfisher, then barely closed her bill on it and withdrew with a shake of 

 the head and refused even to taste Eurytela dryope. 



Half an hour later, after four or five grasshoppers, she tasted and rejected the 

 c? Papilio echerioides, readily ate JVeptis agatha, and once more tasted and rejected 

 the Papilio echerioides. She then ate ten small grasshoppers, the last with dis- 

 inclination and refused the next; tasted and at once rejected Neptis agatha, crushed 

 well and threw away Papilio demodocus 5 , crushed and readily ate a Papilio 

 policenes, and refused a Papilio lyceus. On my continuing to hold it to her, 

 however, she took it, crushed it for a long time, once or twice nearly rejecting it, 

 but finally swallowed it. She then once more crushed and rejected Papilio 

 demodocus $ and a second Papilio lyceios, but readily ate, after crushing each, 

 Salamis nebulosa, Salamis anacardii, and Papilio hippocoon, then leant forward 

 and half tasted Papilio demodocus $ but withdrew without taking it from the 

 forceps. She then refused but, changing her mind, accepted and ate JMJelanitis 

 leda tasted very slightly and with suspicion and refused to take a Henotesia 

 perspicua, refused persistently and with vehement shakes of the head a rather 

 rubbed and battered Precis elgiva, which was perhaps taken for Eurytela dryojye, but 

 readily accepted and ate, though with obvious lack of appetite, Precis archesia, and 

 similarly accepted, held for a time, and finally crushed and ate Precis madagas- 

 cariensis. 



Five minutes later she refused without tasting JVeptis agatha, made as though 

 to take but suddenly drew back from a Rhopalocampta forestan (spots) without 



