X INSECT LIFE 



XV. The Amimophila 



XVI. The Bembex . 



XVII. Hunting Diptera . 



XVIII. A Parasite — The Cocoon 



XIX. The Return to the Nest 



XX. Mason Bees 



XXI. Experiments . 



XXII. An Exchange of Nests . 

 Descriptive Notes . 



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243 

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289 

 306 

 317 



