CONTENTS. 
Letter of transmittal 5 
Letter of submittal 7 
Introduction it 
The American Locust (Schistoccrca americana) 10 
The Large Green Bush-locust (Jcridium shoshone) 11 
The Small Green Locust (Aeridium frontalis) 12 
The Long-winged Forest Locust (Dendroteitix lontjipennis) 14 
The Differential Locust (Melanoplus differentialis) 15 
The Robust Locust (Melanoplus robustus) 17 
The Two-striped Locust (Melanoplus bivit tains) 19 
The Detestable Locust (Melanoplus f (edits) 21 
The Devastating Locust (Melanoplus devastator) 22 
The Xarrow-winged Locust (Melanoplus angustipennis) 24 
The Herbaceous Locust (Melanoplus herbaceus) 25 
The Rocky Mountain Locust ( Melanoplus spretus) 27 
The Lesser Migratory Locust (Melanoplus atlanis) 29 
The Red legged Locust (Melanopl us fern ur-rubr urn) 30 
The Lead-colored Locust (Melanoplus plumbeus) 32 
Pezotettix enigma 33 
The Pellucid-winged Locust (Camnula pellucida) 34 
The Long-winged Locust (Dissosteira longipennis) 3ti 
The Pale- winged Locust (Dissosteira oblitcrata) 39 
3 
