130 



ARTHROPODA 



that not more than a dozen individuals survive. In 

 some species the young pass the winter in the cocoon. 



FlG. 149. Argiope, the large orb weaver just completing the spinning of the wind- 

 ing stair. Photograph two thirds natural size. 



The harvestmen or grandady-long-legs are beneficial mem- 

 bers of this group as they feed largely on harmful insects. 



