332 NATURAL HISTORY OF AQUATIC IXSECTS CH. ^ 



but not continuously, by the sudden ejection of water 

 from the tail. In air the water can be spirted to a 

 distance of several inches. It is, however, only a very- 









•E-r9 



o.:^-' 



T3 " C 



3 K_ U 



> 



" S-S 



rt " S 



I. Sog 



VO — C *-* 



slow or inattentive animal which could be captured J 

 by the direct pursuit of a Dragon-fl}' larva. It trusts ■; 

 chiefly to its sombre coloration and its motionless ji 



