Poplar and willow insects 

 Poplar tent maker, M c 1 a 1 o p h a i n c 1 u s a Iliibn. 



1 Larva on its nest 



2 Moth of same 



Elm sawfly, C i in b c x americana Leach 



4 Larva 



5 Adult of same 



6 Cocoon 



Mottled willow borer, C ry p t o r h y n c h u s la pat hi Linn. 



7 Portion of willow hranch cut to show work 



8 Atlult, dorsal aspect 



9 Shrunk(,'n, discolored area over larval galleries 



Puss moth, Ilarpj'ia sp. 



10 Side view of larva 



1 1 Eggs 



12 Cocoon from which moth has emerged 



Sesia albicornis Hy Ld. 

 I 3 Pupal cases 



Cottonwood leaf beetle, Mclasoma script a Fabr. 



14 Eggs 



I 5 Full grown larva 



1 6 ( .roup of larvae 



I 7 N'oung larvae 



i8 Beetles or "hard slu-lls " showing variation in marking 



19 Pupa or " hangi-r " 



20 Badly eaten leaves showing characteristic method of feeding 



4368 



