filXPLANATION OF FORM AND COLOURlNGf. 325 



but did not take it from the forceps. She then again persistently refused to 

 accept a Precis cebrene and crushed slightly and tossed aside an Adoretits. 



Somewhat later by lamplight the roller very persistently refused with shakes of 

 the head to have anything to do with Papilio angolarius, I'eadily accepted and ate 

 an Arrugia basuta (S , accepted equally readily, crushed and battered well and 

 swallowed the remaining half of the death's-head larva, crushed and threw aside 

 an Adoretus, and refused without tasting a $ Arrztgia basuta. 

 [Summary: — (1) 



r 1. C. cloantha, slightly above 

 Arrugia basuta. < 2. Acherontia larva, which was eaten to refusal-point for 



I Arrugia, C. florella, P. cebrene. 



Adoretus (prob.). 3. P. angolanus. 



M. campina and probably the Terias were preferi'ed to Diac7'isia macidosa, which, 

 on the manner of its last refusal, was perhaps prefei-red to A. caldarena and the 

 two Coccinellids. 



(2) JVote : " The refusals of Papilio angolanus were very decided and final, and 

 there can be therefore no escape from the conclusion that the larva was no more 

 unacceptable to the roller than is Papilio lyoius, possibly less so. I confess that I 

 was surprised in view of its coloration. 



The Diacrisia is quite likely on a level with Nyctemera — it is certainly markedly 

 less unpleasant than Acraa caldarena."^^ 



Exp. 118. — December 9. Very hungry, tasted and rejected Acrcea igola a.nd Acrcea 

 johnstoni, refused without tasting an adult Zonocerus elegans, and tasted and rejected 

 the same locust in the larval stage. 



Exp. 119. — December 10. Ate a large number of grasshoppers, but at last refused 

 persistently to touch any more, and refused with equal obstinacy, without tasting 

 it, a Papilio demodocus with wings attached. She quite readily however accepted, 

 barely crushed, and at once swallowed an Acrseoid Lycjenid, Catochrysops pecidiaris. 

 She then definitely tasted and rejected the Papilio demodocus, and, on my removing 

 and ofi"ering the abdomen alone, tasted it too and rejected it. She then examined 

 a Hypolimnas wahlbergi with one wing attached with an air of doubt and then 

 withdrew and for a long time would not taste it. Finally she did so, slightly and 

 with hesitation, and dropped it, then with the greatest readiness accepted, crushed 

 and ate Precis tugela with one forewing attached. She then once more refused but, 

 changing her mind, tasted the Hypolimnas wahlbergi and rejected it, readily 

 accepted and ate Hamanumida dcedalus, refused again, then tasted, this time much 

 more thoroughly, and rejected the Hypolimnas wahlbergi (she crushed it repeatedly 

 with an air of uncertainty, as though undecided whether to eat it or not), but 

 readily ate a Gatacroptera cloantha, again refused H. wahlbergi for a second then 

 leaning forward took an antenna in her bill and withdrew with a slight shake of the 

 head, readily ate a dead but supple Catochrysops parsimon, refused obstinately to taste 

 Hypolimnas wahlbergi, readily accepted, crushed and ate a Precis artaxia, refused 



