Explanation of Colored Plate. 



Fig. 1 — Sc/iisf. paraueusis ( Burm.) ; female, in spring or 



breeding color. 

 Fig. 2 — ScJiist. payanensis ( Burm.) ; female, in wintering 



color. 

 Fig. 3 — ScJiist. paraueusis ( Burm.) ; male, color of newly 



winged specimen. 

 Fig. 4— Sc/iist. peregrina (Linn.); female, of Algerian or 



Old World locust, normal color. 

 Fig. 5 — ScJtist. peregrina ( Linn.) ; full-grown « saltona » or 



nymph. 

 Fig. 6 — ScJiist. paraueusis ( Burm.) ; full-grown « saltona » 



or nymph. 

 Fig. 7 - ScJiist. aiuericaua ( Drury ) ; full-grown « saltona » 



or nymph. 



Drawn on stone and colored trom original specimens by 

 Federico Burmeister, of the «Museo Nacional», Buenos Aires, 

 Argentine Republic, S. A. 



