OIL BEETLE. 



337, Meloe angusticollis Say), the first larva "being minute 

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



Fig. 337. Oil Beetle, a, first larva ; Z>, second larva; c, third larva ; d, pnpa. 



second and third stages it feeds on the pollen mass designed 

 for the young bees. 



Fig. 338.- Stylops childreni, male, dorsal and side view. Much enlarged. 



The blister beetles (Lytta marginata) undergo a similar 

 eories of transformations called a hypermetamorphosis. 



