121 



Fig. 2. Imago of the Grass Worm : a, typical form ; h, c, varieties. 

 Pig. 3. Grain Leaf Hopper, Cicadula nigrifrons ; magnified five and 



three-fourths diameters ; front wing and front view of 



head more highly magnified. (Original.) 



Fig. 4. Grain Leaf Hopper, Cicadula quadr'dineatus; magnified five 

 and three-fourths diameters ; front wing and front view 

 of head more highly magnified. (Original.) 



Fig. 5. Sketch of wheat field infested by the Grass Worm, show- 

 ing areas denuded. 



Plate VI. 



Fig. 1. The Yellow Sorghum Aphis, Chaitnphorus fiavus, wingless 



viviparous female ; magnified twenty-five diameters. (Prom 



13th Report.) 

 Fig. 2. Chaitophorus jimms, pupa, dorsal view. (Prom 13th Report.) 

 Pig. 3. The same, side view. (From 13th Report.) 

 Pig. 4. Chaitoplwrns fiavus, winged viviparous female ; magriified 



twenty diameters ; a, antenna of the same more highly 



magnified. (Prom 13th Report.) 



Pig. 5. Cymatophora crcpnscularia. (Re-drawn by Mrs. Garman from 

 Packard's Monograph.) 



Fig. 6. Omitted. 



Pig. 7. Clover Mite, Bryohia pratensis; magnified twenty-one diame- 

 ters. (Original.) 



Pig. 8. Apple Leaf Roller, Caca'cia rosaceana; larva, pupa, and 

 moth. 



Pig. 9. Tortrix palloraiia. (Original.) 



Plate VII. 



Fig. 1. Strawberry Worm, Emphytus maculatus: 1, ventral view of 

 pupa ; 2, side view of same ; 3, enlarged sketch of perfect 

 fly, the wings on one side detached ; 4, larva crawling, 

 natural size ; 5, perfect fly, natural size ; 6, larva at rest ; 

 7, cocoon ; 8, enlarged antenna, showing joints ; 9, en- 

 larged egg. (After Riley.) 



Pig. 2. The Tarnished Plant Bug, Lygus lineolaris, adult; magni- 

 fied fifteen diameters. (Prom 13th Report. ) 



Plate VIII. 



Fig. 1. The Tarnished Plant Bug, Lygus lineolaris, fourth stage; 

 magnified fifteen diameters. (Prom 13th Report.) 



Pig. 2. The same, second stage ; magnified fifteen diameters. (Prom 



13th Report.) 

 Pig. 3. The same, first stage; magnified fifteen diameters. (Prom 



13th Report. 



