OF SOCIABLE CATERPILLARS. 107 



Mason Caterpillars. Among them may be ranked 

 the Death's Head Sphinx, plate lxxi. Some of these 

 make a rude masonry of particles of earth, united by 

 silk or gluten, varying in form according to the 

 .species. 



NEST OP THE EARTH MASON LARVA, 

 (The Water lielony Moth,) 



which is generally of an oblong shape, although they 

 are not always uniform. The interior is smooth, 

 lined with a fine tapestry of silk, and polished. 



