89 



154. The Oak Webworm. 



Archip!^ {Cacuvld) fcrridana Clem. 



Larv;)' live in colouips on oak, sheltered l)y a wel) inclosing leaves and a mass of 

 excrement. 



Exhibit: Adults. 



155. The Slug Caterpillars. 



Family Cochlidiidx. 



These bright-colored slug-like larvae feed very generally on foliage of most decidu- 

 ous trees. 



Exhibit: the following species: (Siftine .sf/mitZea Clem., adults, larva, cocoon; Eude<t. 

 delpJimii Bd., adult; Euclen indeiermma Bd., adult. 



THE FALSE CATERPILLARS OR SAWFLIES. FAMILY TENTHRE- 



DINID^. 



P^^lRT of C^5^SE 30. 



156. Abbot's White-Pine Sawfly. 



Loplii/rus (ihhutii Lfaeh. 



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

 to pine. 

 Exhibit: Adults, larvie, cocoons. 



157. The Larch Sawfly. 



Nematus erkhsonii Hartig. 



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

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

 large pi'o]iortion of the ti'ees. 



Exhibit: Adults. 



158. The Large American Sawfly. 



Vimhe.c americana Leach. 



Larva? destroy foliage of elm, willow, poplar, and linden. 

 Exhibit: Adult. 



MISCELLANEOUS FOLIAGE INSECTS. 



159. The Common "Walking Stick. 



Duqjheromera femorata Say. 



Young and adults devoui- foliage of deciduous forest trees. 

 Exhibit: Adult. 



160. Katydid. 



Microceritrmn hmrlfoltiim Linn. 



Young and adults feed on foliage of trees. 

 Exhibit: Adult, eggs. 



LEAF-BEETLES. FAMILY SCARABiEIDiE. 



T'J^^ir OF Cj^SK 31. 



161. The Rhinoceros Beetle. 



Dijnaste.t fifyus Linn. 



Larvft? mine in decaying stumps; adults destroy foliage of ash. 

 Exhibit: Adults. 



162. The Goldsmith Beetle. 



( btalpa l<nilf/c)'a Linn. 



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

 Exhibit: Adulte. 



