EXPLANATION OF FORM AND COLOURING. v^'>5 



Exp. 175. — December 4. Tried and rejected a grasshopper, but ate readily, 

 crushing it easily, an isopod, a smallish individual. 



Exp. 176. — December ?>. (After grasshoppers.) Refused without tasting, then tried 

 and rejected a grasshopper [Gatantops sp.) and Aletis monteironis,iite readily Mycalesis 

 campina, tried and rejected Terias senegalensis^ tried and I'ejected a big Acridium 

 lineatum, and battered very thoroughly a huge horny Longicorn, Mcdlodon downesi, 

 but failed repeatedly to swallow it, the head and thorax being the difficulty. She 

 finally battered these off and swallowed the rest, tried and rejected the head and 

 thorax reoffei'ed. Later she threw away a large Coprid larva, but ate I'eadil}^ tiiat 

 of a Oetoniid beetle, RhabdMis aulica. 



[Order : — 



1. Larva of Rhabdotis aidica. 



2. Mcdlodon doivnesi (thorax and head the difficulty). 



3. Acridmm lineatum (interesting that evidently regarded as 



less easy than the big Longicorn), Terias senegalensis, Aletis 

 ononteironis, and Catantops. 

 The Mallodon had been found moving sluggislily about in the forest.] 



Exp. 177. — Later. Hungry, just before noon. Tried and rejected a grasshopper 

 {Catantops), a moth (Syntomis cerbera), and a grasshopper [Atractomorjyha), but 

 readily tackled a very frothy Taphronota calUparea, banging it for several minutes 

 and several times commencing to svvalIo^'v: it before finally throwing it away. She 

 then readily ate an Asilid fly, Alcimus rubiginosus, thi-ee grasshoppers, three larvae 

 of Rhabdotis OMlica, another Asilid, and a Mycalesis camphia, a lai'ge grasshopper 

 {Xiphocera), then yet another Asilid and a P. angolanus. 



[Alcimus rubiginosics was preferred to IVtphronota calliparea, and the latter 

 certainly tempted the roller more than Syntomis cerbera and the two grasshoppers. 

 It is even probable that M. camphia, P. angolanus, and the large grasshopper 

 {Xlj^Jiocera) were also preferred to Taphronota, but the complicating factor of 

 possible special stimulation is unfortunately present.] 



Exp. 178.' — T)ecer)iber 6. After a few grasshopjjers. Ate readily a beetle, 

 Anoniala ustidatipes, and a bug, Echinocoris sp., but also a Terias senegalensis, 

 failed to crush and abandoned a weevil, Brachycerus congestios, refused without 

 tasting a house-fly (3l. domestica), then took and swallowed it, tried and rejected 

 Acrcea caldarena. 



[Probably very hungry to have eaten the house-fly (which she has already placed 

 lower than Terias), a,nd this gives a partial measure of the difficulty presented by 

 Brachycerus congestus.'] 



Exp. 179. — December 10. Tried and rejected large green fly (Pycnosoma), an 

 Anthomyiid fly, large brown fly, house-fly and another fly (Anthomyia), and refused 

 persistently without tasting Zonocerus elegans, ate readily in preference to all 

 these Terias senegalensis and a black Cetoniid {Diplognatha gagates). 



