

HUNTERS OF LARGE ORTHOPTERA 187 



exact spot under normal conditions. In this case it may 

 have been easier than usual, since we had already exposed 

 the tarsus of the grasshopper. 



After having observed this startling conduct, we were alert 

 for other Stizus. On August 31 the morning was bright, dry 

 and sunny on the diamond. When a S. unicinctus appeared, 

 foraging after her manner, we followed in eager pursuit. 

 She was flying lightly from place to place, peeping and ex- 

 amining every spot where the bare surface ground (fig. 2) 

 was a little roughened, such as by ant-hills, or little breaks 

 in the bald smooth ground made by hoof or heel. She made 

 no pretense at alighting on smooth or unbroken spots, but 

 flew lightly from one to another. We followed her and 

 watched her for six minutes; in this time, she alighted 

 ninety-one times on the roughened spots and peeped under 

 the clods, but only twice did she alight on the smooth, 

 unbroken earth, although by far the greater portion of the 

 area was smooth. Was she trying to find a Priononyx hole 

 by this method ? She flew out over the grassy portion of the 

 field bordering the diamond a part of the time; there, in 

 about three minutes, she made twenty stops. When out 

 over the grass she alighted only at long intervals when- 

 ever she came upon a little bald spot among the grass 

 but here she alighted on every bare spot she found whether 

 smooth or broken. While on the diamond, where all was 

 bare, she paid attention to only the roughened spots. On 

 one occasion, she appeared to be particularly suspicious 

 of a certain hoof-print and examined it all very minutely; 

 she paused and scratched at five different places in the cres- 

 cent, and once burrowed so deep that her head was out 

 of sight. 



An hour later, on the same morning, we followed another 

 Stizus for a few minutes, as she flew from place to place 



