xii LIST OF ILLUSTRATIONS 



PLATE FACING PAGE 



a Surprised in its burrow FIG. 3 



b Exposed burrow FIG. 3 



XV. Male Tarantula, Aphonopelma 



a Clambering over stone 120 



b Portrait 1 20 



XVI. Tarantula, Aphonopelma 



a Female on desert soil 1 2 1 



b Web-covered entrance to burrow 121 



c Female and egg sac in exposed burrow 1 2 1 



XVII. Tarantula, Aphonopelma, and Tarantula Hawk 



a The tarantula assumes a defensive attitude 142 



b The wasp inserts its sting 142 



c Pulling the bulky prey to prepared burrow 142 

 XVIII. Silver Argiope, Argiope argentata 



a Female and pygmy male 143 



b-Egg sac 143 



Egg Sac of Orb Weavers 



a Banded Argiope, Argiope trifasciata 143 



b Humped orb weaver, Aranea gemmoides 143 



XIX. Long-Legged Cellar Spiders, Pholcus phalangioides 



a Male and female, with eggs, in tangled web 150 

 b Female holding mass of recently hatched 



young 1 50 



XX. A Comb-Footed Spider, The Black Widow, La- 

 trodectus mactans. Captures A Jerusalem 

 Cricket 

 a The spider approaches as the cricket touches 



the capture threads 151 



b Nooses of swathing film are combed over the 



leg 151 



XXI. A Comb-Footed Spider, The Black Widow, La- 

 trodectus mactans, Captures A Jerusalem 

 Cricket 



c Tiny fangs inject the venom 172 



d The bulky insect is lifted above the floor 172 



XXII. A female humped orb weaver, Aranea gemmoides % 



clinging to a plant 173 



A female humped orb weaver, Aranea gemmoides, 



hanging in the hub of her orb web 173 



A fisher spider, Pisaurina mira, with egg sac 173 



