- 32 - 



sects. the3- suddenly drop to the ground at its approach and 

 cling there as described abo\'e. 



Whether or not the saltonas have any definite instinct as to 

 directions and choose these when marching, the writer has been 

 unable to decide to his satisfaction. Mangas in the same region 

 have been observed moving in various directions. There did 

 not even appear to be a prevailing one. so varied were they 

 As soon, however, as the insects had become winged and begun 

 flying their sense of direction showed itself by their invariabl}' 

 working toward the northwest. 



