THE HUxNTKESS WASPS 



us the impelling motive to the entire series of aranean 

 architecture of which Tigrina's dome, Arenicola's turret, 

 and Cteniza's trap-door-covered tunnel are types/ 



It sometimes happens that one huntress wasp attacks 

 another individual of her species who is home-bomid 

 with the fruits of her hunting, and attempts to rob her. 

 A fight ensues, fiercely waged and often with a fatal 

 ending to one or both of the combatants. Quite an ani- 

 mal trait, indeed ! — not excepting the lord-paramount, 

 Man. 



' See the author's American Spiders and their Spinning-work, vol. 

 ii., p. 402 sqq. 



i6 



