Smithsonian Report, 1939. — Back 



PUATE 5 



a. Pages of book ruinoil by feciliiiff of grubs of Ne.ogaslTalliis librinncens. Eight larvae are shown in cells iu 

 which they are about to transform to the adult beetle stage. 6, A single feeding grub of GaMraUns laevi- 

 gatus in the burrow it has made; c, four grubs and four adults of the drugstore beetle, Stegobium 

 patiiceum. 



