HUNTERS OF LARGE ORTHOPTERA 199 



the surface of the earth for several inches around. This 

 at once revealed a hole, newly refilled, which went down to 

 a depth of less than an inch, when it expanded into a pocket, 

 one inch long and three-eighths inch in diameter, lying almost 

 horizontally. At the far end, this chamber contracted into 

 the channel again with its diameter of three-sixteenths inch 

 and a length of about one-fourth inch; this portion also was 

 filled in with a compact plug of fresh dirt. Beyond this, 

 the hole again expanded, forming another pocket exactly 

 like the first. Each of these cells contained a grasshopper, 

 Melanoplus femur-rubrum, neatly tucked in with its head 

 toward the rear wall. Each hopper carried an egg fastened 

 to the femur, near the abdomen, in the precise spot where 

 Priononyx attaches her eggs. We took them home but were 

 unable to rear them. 



FIG. 44. The twin-celled nests of an unknown wasp. Exact size. 



A few feet distant we found another pellet-pile similar to 

 the first. Only by the same method of search, scooping off 

 the surface earth, did we discover a second nest almost 

 identical in form with the first : two cells lying horizontally 

 with a constricted part between them filled with dirt (fig. 



