28 TPaBES OF THE 



But the creature is as active 



In the pupa as the larva, 



Diviug just as quick when frightened, 



Diving deeper in the water, 



Many summersaults performing. 



In its hasty progress downwards. 



Till it finds itself in safety, 



And then gently floating upwards. 



By its hghtness, to the surface. 



Thus we find one great exception 



To the rule denying action 



To a true amorphous pupa. 



Tribe the third, Stratiomina, 

 Mostly have a water larva, 

 Long, and tapering off to nothing, 

 But divided into segments, 

 Marked most deeply and distinctly. 

 When the pupa stage is coming. 

 Then the larva skin turns rigid, 

 Lasing nothing of its figure ; 

 And the pupa stays within it 

 Till the season for emerging. 

 The perfect insect or imago 

 Has the body flat and widened, 

 Looking much as though flatii'oned. 

 Wider than the wings when closely 

 Laid incumbent on each other, 

 Always nipped in at the middle ; 



