250 Professor Edward B. Poulton on the 



successful in finding her again than any other species I 

 have observed. At 5*30 the male jumped on the 

 posterior part of the female's body, his legs round her 

 tegmina. In this position he continued to stridulate 

 although at rare intervals (he did so at 5"50). The 

 female carrying the male shifted backwards moving her 

 abdomen. She seemed to have some difficulty in expelling 

 ffEceSj and this was apparently the cause of the movement. 

 The male stridulated, and then at G'O, without having 

 copulated^ he quitted the female, stridulated, and went 

 away." 



PSOPHUS STRIDULUS. 



The large black males were common just below the 

 hotel, and on some slopes below the Bella Tola, where 

 Stethophyma fuscum ahounded. Their red under wings 

 were very conspicuous when flying, the characteristic 

 rattling sound still further attracting attention to them. 

 The larger brown, toad-like females, with smaller wings, 

 are probably unable to fly. 



I never saw the sexes together ; but after I had left, 

 F. Jenkinson kindly sent me the following notes : — 



" September 5. — When the male finds himself near a 

 female, he utters a double ' twitter ' (once a twitter and 

 then a trill), and moves excitedly. In one case I saw 

 him leap on the back of a female, but presently he left 

 her of his own accord. 



" At 3 p.m. I came across a pair in coitu, but the male 

 disengaged himself by vigorous movements of the third 

 legs. They remained for a long time within two inches 

 of each other, but nothing happened. I made the female 

 jump away, caught her, and put her in the male's way. 

 He at once became excited, and twittered, but the female 

 escaped. This occurred more than once, when I lost 

 her. 



" A male, disturbed as I came home (about 6'45 p.m., 

 when the sun was setting), hopped vigorously, but did 

 not open his wings." This latter observation is of inte- 

 rest, because the males always took to flight, when dis- 

 turbed,, on other occasions. 



" September 7. — On placing the female near the male, 

 he became excited, and made a twittering sound with 

 his legs. The female, in moving oS", showed the red 



