900 NEW YORK STATE MUSEUM 



FIG. 



4 Pulvillus 



5 Two segments of antenna of male 



6 Two segments of antenna of female. All very greatly en- 



larged 



PLATE 3 



Leopard moth 



Z e u z e r a p y r i n a Linn. 



1 Larva and castings 



2 Empty pupal case 



3 Female moth at rest. All on a badly bored piece of wood 



PLATE 4 



1 Gall ofRhabdophaga salicis Schrk. on European 



willow 



2 L e c a n i u m n i g r o f a s c i a t u m (After Pergande, U. S. 



dep't agric. div. ent. Bui. 18 new series '98. p. 27) 



3 Rose scale insect, Aulacaspis rosae Sandb., on black- 



berry, enlarged 



4 Male, female and young scale, very much enlarged 



5 Birch leaf Bucculatrix, Bucculatrix canadensis- 



ella: a skeletonized leaf; & molting cocoon; c larva; 

 d head of larva; e anal segments of larva; f same of pupa; 

 (/cocoon with extruded pupa skin; h moth — all enlarged. 

 (From Insect life) 



PLATE 5 



General view of experimental orchard showing thrifty appear- 

 ance of young trees infested with San Jose scale, showing how 

 the pest has been controlled by spraying. Photo 8 Oct. 1901 



PLATE 6 



Young orchard in bad condition on account of San Jos6 scale 

 and yet it became infested later than the orchard represented on 

 pi. 5 but prior to date had not been sprayed. Photo 8 Oct. 1901. 



