OIL BEETLE. 



373 



, Meloe angusticollis Say), the first larva being minute 

 and parasitic on bees, sucking their blood, while in the 



Fig. 342. Oil Beetle. a, first larva ; &, second larva ; c, third larva ; d, pupa. 



second and third stages it feeds on the pollen mass designed 

 for the young bees. 



Fig. 343,Stylops childreni, male, dorsal and side view. Much enlarged. 



The blister beetles (Lytta marginata) undergo a similar 

 series of transformations called a hypermetamorphosis. 



