EXPLANATION OF FORM AND COLOUElNG. 287 



[Summary : — 



(«) 1. N. agaiha. 



2. B. severina. 



3. T. senegcdensis. 



4. M. rueppelli and M. agathina. 



[b) 1. F. lyceus, P. demodocus, and L. argia. 

 L. thalassina 6 . (2. B. dry ope. 

 J^. agatha. I 



P. angolanus. ( 3. Red Phymateus. 

 In arranging (6) I am assuming to be correct the indication that P. lyceus was 

 not appreciably better liked than P. demodoctos. L. argia having been placed above 

 B. dry ope and B. thalassina below P. demodocus, it is possible that the two 

 Leuceronias should together form a grade intermediate between 1 and 2.] 



Exp. 72. — Augiost 21. Crushed and at once rejected Mylothris agathina S , readily 

 ate Neptis agatha, eight small grasshoppers and a second JSfeptis agatha, tasted and 

 rejected a Mycalesis campina, tasted and rejected a Syntomid moth [Syntomis 

 cerbera) ofi'ered without wings, readily ate a large Coreid bug with strong- 

 smell {Petascelis remipes) after crushing it well, also a third Neptis agatha. She 

 then tasted well and rejected an Ichneumon, Osprynchotus jiavipes, also a second 

 Syntomis cerhera (with wings), then crushed well and readily ate a second large 

 Coreid bug of the same species, tasted very slightly, suspicious perhaps of the 

 colour, and rejected and afterwards refused without tasting a small bright red 

 beetle, crushed very well and rejected doubtfully the pupa of Acrceaserena, refused, 

 then barely tasted if at all a Teracolus with one forewing attached and dropped it. 



A large baboon was at this moment detected watching us intently from an 

 eminence close by, doubtless awaiting an opportunity of slipping in amongst the 

 ripening coffee. I could not resist the temptation of a shot. On my return not 

 many minutes later I gave the bird six very small grasshoppers to balance any 

 alteration of appetite that the delay might have occasioned. She evidently, 

 however, still remained somewhat hungrier than before (or was whetted by the 

 grasshoppers), for she now ate not only a Neptis agatha and the Teracolus (after at 

 first refusing the latter without tasting), but also a Mycalesis campina. I had no 

 Belenois or Terias at the moment to offer, but the bird tasted and once more 

 rejected Mylothris agathina with marked disgust. 



A second interruption, longer than the first, now occurred. After it the bird 

 played for a few seconds with Mylothris agathina S , repeatedly tossing it into the 

 air and catching it. The last time she did not trouble to take it as it descended, 

 and on my reoffering it refused it without tasting. She next tasted and at once 

 rejected the first Syntomis cerbera, crushed and tasted very thoroughly indeed, 

 running it time after time through her bill and evidently doubtful whether to 

 swallow it, the pupa of Acrcea serena, from which the juices were already exuding as 

 the result of the first tasting. She at last swallowed it, but had barely done so when 

 she at once brought it up again and rejected it, afterwards refusing it without tasting. 

 She then refused without tasting, but on my continuing to offer it, crushed and at 

 once rejected the large common orange and black Ichneumon, Osprynchotus jiavipes^ 



