(F) 



EXPLANATION OF PLATES. 



Plates I, IV, V, VII, VIII, IX, XIV, are from photographs by E. P. Felt Plates X, XI, XII. 

 XIII, are from photographs by W. W. Byington. 



Plate I. 

 Ecpantheria scribonia. 



The Great White Leopard Moth. 



The upper three figures are males; the lowest two, females: showing 

 the variations in maculation in this species. 



Plate II. 

 Leucania unipuncta. 



The Army- Worm 



Army-worms at work on acorn plant, nearly natural size (after Slinger- 

 land). 



Plate III. 



Leucania unipuncta. 



The Army- Worm. 



Fig. a. — Moth at rest, natural s'ze; <^, moth with wings expanded ; 

 c. moth twice natural size; lower figures, light and dark 

 varieties of army-worms, twice natural size (after Slinger- 

 land). 



Plate IV. 



Fig. I — Larval spines ot Ecpantheria scribonia, 'Oci\x\.)'-'a-^& times nat- 

 ural size. 



Fig. 2. — Heads of timothy eaten by army-worms, nearly natural size. 



Fig. 3. — Tips of grape vines infested with larvai of Oxyptilus perisceli- 



dactytus, natural size. 

 Fig. 4. — ^ Young and nearly full-grown larvae of Oxyptilus, -dbont three 



times natural size. 



Fig. 5. — Pupae of sauie, about three times natural size 

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