Poplar borer, Sapcrd.i calcarata Say 



A Piece of poplar showiiii^ work of this insect 



1 Work of youni( larva 



2 Adult 



3 Orifice in hark throui^h which borings are expelled 



4 (iallery k-ading to orifice shown at 3 



5 Peculiar excelsiorlike borings made by larva 



6 Pupa in its chamber with one t-nd stopped by excelsiorlikc borings 

 26 Pull grown larva 



Linden borer, S ap e r d a v c s t i t a Say 

 H i'ortion ot base of linden showing tiie work of this species 



7 Expanded gallery under bark made by larva 



8 Gallery in wood extending under bark to 7 



9 Sawdust packed in the larval gallery 

 10 Gallery leading into heart of the tree 



C A piece of linden root with portion cut away to show operations of the 



grub 

 I I Larval galleries in cross-section 



12 Circular exit hole of the beetle 



13 Wound made by borer 



14 Prass ejected by larva 



I 5 Adult beetle on the bark 



16 A portion of the bark cut away showing the borer in its gallery 



W^oodbine borer, S ,1 p c r d a p u n c t i c o 1 1 i s Say 

 1) Piece of woodbine showing work of this species 



17 Larval gallery in section 



18 Pupa in its chamber showing orifice 



19 Larva and its work under the i)ark 

 24 Adult beetle 



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