The Broad-necked Scarab 



The sphere Is hollowed into a crater and 

 becomes a sort of bulging, shallow pot. 

 The lips are drawn out into a pocket which 

 receives the egg. The pocket is closed, 

 polished outside and joined neatly to the 

 sphere. The pear is finished. The other 

 half of the pill is now similarly treated. 



The notable feature of this work is the 

 elegant regularity of the forms obtained 

 without any rolling. Chance enables me to 

 add another and a most striking proof to the 

 many that I have given of this modeUing 

 done on the spot. Once and once only I 

 managed to get from the Broad-necked 

 Scarab two pears closely soldered together 

 by their bellies and lying in opposite direc- 

 tions. The first one constructed can teach us 

 nothing new, but the second tell us this : when, 

 for a reason that is not apparent, lack of 

 room, perhaps, the insect left this second pear 

 touching the other and soldered it to its 

 neighbour while working at it, obviously, 

 with this appendage, any rolling or any mo- 

 ving became impracticable. Nevertheless, 

 the pretty shape was secured to perfection. 



From the point of view of instinct, the 



distinguishing features which make of the 



two pear-modellers two entirely different 



species are absolutely clear from these details 



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