SPHEX. 59 



holes of wooden partitions abandoned by other insects, 

 placing a piece of moist clay at the bottom, and stick- 

 ing a spider upon it. After depositing its egg in the 

 spider's body, closes up the entrance with clay, and 

 leaves it to be devoured by the larva. 



PL 57. a. Natural size, b. The same magnified, 



