81 



145. The American Tent-Caterpillar {Malnrosoma {Clitiocampn) nmericana Fab.)- 

 Liirvii' primiiially ilfstnictivi- to fruit trees, Vmt also to cherry and a few other 



forest trees in tlie Eastern States. 

 Exhihit: Athilts, ejr^s. 



146. The Rocky Mountain Tent-Caterpillar {Mularoxomo [Clworampn) fnujilk 

 Stretch.). 



I^arvje feed on ileciduoiis foresl trees generally and are at times very destructive. 

 Rocky Mountain States. 



Exhibit: .Adults, ejij^s, larva\ 



147. The Northwestern Tent-Caterpillar {Malacomma {CImocampa) jiluviali^ 

 Dyar.). 



Larva? on most species of deciduous forest trees in the Northwestern States. 

 Exhibit: Achilts. larva, cocoon. 



148. The Californian Tent-Caterpillar {Malacosoiiia {('rixi()r(nit}>(i) nillfomica 

 Pack.). 



Larvae on oak in California. 

 Exhibit: Adults, larva. 



149. The Spring Canker-Worm {Palmcritn vemata Harr. ). 



Tlie larvic feed upon the surface of the leaves of various forest and shade trees; 

 especially upon elm in the Eastern States. 

 Exhibit: Adults, pupa. 



CASK 30. 



150. The Cherry-LeafWeb-Worm (Calocalpe undxdnia Linn.). 

 The larvie live in webs on the terminal shoots of black cherry. 

 Exhibit: Adults, work. 



151. The "Western Oak Span-Worm ( Tlierina somniaria Hulst. ). 



The larvte occur on oak in the Northwestern States, sometimes defoliating trees. 

 Exhibit: Adults, pupje. 



152. The Larg-e Forest Span-Worm {Salndodes trausrersata Dm.). 

 Larva' occur on maple, poplar, oak. etc. 



Exhibit: Adults, larva. . 



153. The Crinkly Flannel Moth ( hnjoa rrinpatn Pack.). 



The larv;i'. which somewhat resemble the sing caterpillai-s, feed upon oak, jM>plar, 

 and a variety of other deciduous trees. 

 Exhibit: .\dult,>j. 



154. The Oak Web- Worm (Arrhips (Cacorna) fewidnuo. Clem.). 



Larvjc live in colonies on oak, sheltered by a web inclosing leaves and a ma.><s of 

 excrement. 



Exhibit: .\dults. 



165. The Slug Caterpillars ( Family Cocldidiidn:.). 



These bright-coloreil slug-like larva^ feed very generally on foliagt> of most decidu- 

 ous trees. 



Exhibit: the following species: ,S'/7;/»c .s^wiiz/fd Clem., adults, larva, cocoon; I-Mclra 

 delphinii Bdv., adult; Euclea inddermina Bdv., adult. 



