32 



THE FALSE CATERPIIiLARS OR SAWFL.IES. FAMILY TENTHRE- 



DINID^. 



r>^RT OF CASE 31. 



156. Abbott's "White-Pine Sawfly (Lophyrus abhotti Leach). 



This species, together witli several closely allied forms, is at times very destructive 

 to pine. 



Exhibit: Adults, larvfe, cocoons. 



157. The Larch Sawfly {Nemaius ericlisonii Hartig). 



One of the most destructive forest insects; the larvaj at various times past entirely 

 defoliated the larch throughout the Northeastern States and caused the death of a 

 large proportion of the trees. 



Exhibit: Adults. 



158. The Large American Sawfly {Chnhex americuna Leach). 

 Larvee destroy foliage of elm, willow, poplar, and linden. 

 Exhibit: Adult. 



MISCELLANEOUS FOLIAGE INSECTS. 

 P.!^RT OF CASE 31. 



159. The Common Walking- Stick {Diapherotnerafemorata Say). 

 Young and adults devour foliage of deciduous forest trees. 

 Exhibit: Adult. 



160. The Katydid {Microcentrma Immfolmn JAnn.). 

 Young and adults feed on foliage of trees. 

 Exhibit: Adult, eggs. 



LEAF-BEETLES. FAMILY SCARAB^IDiE. 



161. The Rhinoceros Beetle (Di/nastes ^(7(/H.s' Linn. ). 

 Larv&e mine in decaying stumps; adults destroy foliage of ash. 

 Exhibit: Adults. 



162. The Goldsmith Beetle {Cotalpa lamgevd Linn.). 



Adults on oak, poplar, and other deciduous trees, sometimes defoliating them. 

 Exhibit: Adults. 



THE LEAF-BEETLES. FAMILY CHRYSOMELID^. 

 PART OF CASE 31. 



163. The Imported Elm Leaf-Beetle ( GaleruceUa luteola Mull. ). 

 A very serious enemy to the elm in the Eastern States. 

 Exhibit: Adults, work. 



164. The Larger Elm Leaf-Beetle {Moiioceda coryii Say). 



Adults and larva; destroy foliage of elm in sections of the Middle West. 

 Exhibit: Adults, work. 



165. The Striped "Willow Leaf-Beetle {Melu><uiiia acripta Fab.). 



Both larva- and adults feed on foliage of poplar and willow, and are at times very 

 destructive to these trees. An especial enemy of the osier willow industry. 

 Exhibit: Adults, pupfp. 



166. The Spotted "Willow Leaf-Beetle {Mekmnnalapponica Linn.). 

 Habits similar to the above, but less abundant and injurious. 

 Exhibit: Adults. 



