Courtship of certain Etirojoean Acridiida'. 247 



and having found one gently touched her with the pliant 

 extremity. She did not stir, and I became bolder ; I 

 rubbed her lydy on either side and also the inside of the 

 coxa3 and antennas. She was still unmoved, except that 

 a slight rigidity seemed to supervene^ and the abdominal 

 extremity curved slightly upwards. Gently tickling this 

 part the curve rose and the rigidity seemed more marked. 

 1 now stroked her as gently as I could, and she permitted 

 this extreme familiarity Avithout resentment. Lastly, I 

 took her softly up and laid her in the palm of my hand. 

 Turning her from side to side she seemed quite content 

 and did not exhibit a flutter or a tremor. I continued 

 my caressings for ten minutes or a quarter of an hour, 

 and then laid her in a warm spot and watched her for 

 another quarter of an hour. She did not move, although 

 she was alive enough. Was she hypnotized ? " 



This last interesting observation suggests that very 

 marked effects may be produced by the patting which I 

 witnessed on August 30th, and by the nibbling in the 

 case of PezoteMicO. In this latter species, indeed, the 

 effect produced on a female after her first unsuccessful 

 attempts to throw off the male, appeai'ed to be very 

 much like that induced by Mr. Dickins in the female of 

 Gompliocerus. 



STETHOrUYMA FUSCUM. 



This magnificent species was very abundant in the 

 open grassy spaces between the trees at the water- 

 courses some few hiindred feet below the hotel, and also 

 in certain places on the slopes far below the Bella Tola. 

 The stridulatiou was far more characteristic than that of 

 any other species observed : first three (sometimes two) 

 sti'okes of the third legs across the tegmina, then a rapid 

 vibration of the former against the latter for a few 

 seconds. The result is three piercing sounds in rapid 

 succession, and then a prolonged rustle. The rivalry 

 between the males and their replies one to another were 

 very evident, but their relations to the female were only 

 witnessed once or twice. 



August 31. — This species was observed by the water- 

 courses. Many females were seen but never attended 

 by males on this occasion. I came across a pair of males 

 in the grass fighting in a very clumsy manner : they lay 



