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A MANUAL OF THE GRASSHOPPERS OF NEW MEXICO

ORTHOPTERA: ACRIDIDAE AND ROMALEIDAE

D. B. RICHMAN, D. C. LIGHTFOOT, C. A. SUTHERLAND, AND D. J. FERGUSON

ILLUSTRATED BY LONNIE BLACK

NEW MEXICO STATE UNIVERSITY COOPERATIVE EXTENSION SERVICE
LAS CRUCES, NM

SEPTEMBER 1993

Modified for electronic publication by
SPENCER SCHELL
UNIVERSITY OF WYOMING
2003

CONTENTS

ACKNOWLEDGMENTS

PREFACE

HOW TO USE THIS MANUAL

GRASSHOPPER MORPHOLOGY AND BIOLOGY

Life Cycles
Natural History
Behavior
Population Dynamics
Distribution of Grasshopper Species in New Mexico

MANAGEMENT OF GRASSHOPPER POPULATIONS

History of Grasshopper Problems in New Mexico
Biological and Economic Basis for Suppression of Grasshoppers
Estimation of Grasshopper Densities
Insecticidal Control of Grasshoppers
Biological Control of Grasshoppers
Cooperative Grasshopper Control Programs

KEY TO THE ADULTS OF THE SHORT-HORNED GRASSHOPPER FAMILIES AND SUBFAMILIES

KEY TO THE LUBBER GRASSHOPPERS (ROMALEIDAE)

KEY TO THE BIRD GRASSHOPPERS (ACRIDIDAE: CYRTACANTHACRIDINAE)

KEY TO THE SPUR-THROATED GRASSHOPPERS (ACRIDIDAE: MELANOPLINAE)

KEY TO THE SLANT-FACED GRASSHOPPERS (ACRIDIDAE: GOMPHOCERINAE)

KEY TO THE BAND-WINGED GRASSHOPPERS (ACRIDIDAE: OEDIPODINAE)

LIST OF NEW MEXICO GRASSHOPPER FACT SHEETS

DISTRIBUTIONS OF GRASSHOPPERS IN NEW MEXICO

GLOSSARY

REFERENCES