89 
154. The Oak Webworm. 
Archips (Cacecia) fervidana Clem. 
Larve: live in colonies on oak, sheltered by a web inclosing leaves and a mass of 
excrement. 
Exursir: Adults. 
155. The Slug Caterpillars. 
Family Cochlidiidee. 
These bright-colored slug-like larvee feed very generally on foliage of most decidu- 
ous trees. 
Exursir: the following species: Sibine stimulea Clem., adults, larva, cocoon; Huclec 
delphinii Bd., adult; Huclea indetermina Bd., adult. 
THE FALSE CATERPILLARS OR SAWFLIES. FAMILY TENTHRE- 
DINIDZ. 
PART OF CASE 30. 
156. Abbot’s White-Pine Sawfly. 
Lophyrus abbotu Leach. 
This species, together with several closely allied forms, is at times very destructive 
to pine. 
Exuipir: Adults, larvee, cocoons. 
157. The Larch Sawfly. 5 
Nematus erichsoni Hartig. 
One of the most destructive forest insects; the larvee at various times past entirely 
detfoliated the larch throughout the Northeastern States and caused the death of a 
large proportion of the trees. 
- Exaursit: Adults. 
158. The Large American Sawfly. 
Cimbex americana Leach. 
Larvee destroy fohage of elm, willow, poplar, and linden. 
Exuisir: Adult. 
MISCELLANEOUS FOLIAGE INSECTS. 
PART OF CASE 30. 
159. The Common Walking Stick. 
Diapheromera femorata Say. 
Young and adults devour foliage of deciduous forest trees. 
Exnurpit: Adult. 
160. Katydid. 
Microcentrum laurifolium Linn. 
Young and adults feed on foliage of trees. 
Exuisir: Adult, eggs. 
LEAF-BEETLES. FAMILY SCARABAIDZ. 
PART OF CASH 31. 
161. The Rhinoceros Beetle. 
Dynastes tityus Linn. 
Larvee mine in decaying stumps; adults destroy foliage of ash. 
ixuipir: Adults. 
162. The Goldsmith Beetle. 
Cotalpa lanigera Linn. 
Adults on oak, poplar, and other deciduous trees, sometimes defoliating them. 
Exursit: Adults. ; 
