The Method of the Calicurgi 



tinue these interesting studies will, I am sure, 

 fill up many gaps. The problem is difficult 

 but not impossible. 



I will not quit my bell-jars without saying 

 a word on the entomological tact of the cap- 

 tives when they decide to attack. One of 

 the pluckiest of my subjects, the Hairy Am- 

 mophila, was not always provided with the 

 hereditary dish of her family, the Grey 

 Worm. I offered her indiscriminately any 

 bare-skinned caterpillars that I chanced to 

 find. Some were yellow, some green, some 

 brown with white edges. All were accepted 

 without hesitation, provided that they were 

 of suitable size. Tasty game was recog- 

 nized wonderfully under very dissimilar 

 liveries. But a young Zeuzera-caterpillar, 

 dug out of the branches of a lilac-tree, and 

 a silkworm of small dimensions were defi- 

 nitely refused. The over-fed products of 

 our silkworm-nurseries and the mystery-lov- 

 ing caterpillar which gnaws the inner wood 

 of the lilac inspired her with suspicion and 

 disgust, despite their bare skin, which fa- 

 voured the sting, and their shape, which was 

 similar to that of the victims accepted. 



Another ardent huntress, the Interrupted 

 Scolia, refused the Cetonia-grub, which is of 

 like habits with the Anoxia-larva; the Two- 

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