Butterflies of the Colorado Front Range

by Janet Chu

Overview

Get close to swallowtails, blues, fritillaries, monarchs and other Colorado butterflies while learning about their miraculous transformations and unique adaptations. Striking photos in natural settings and clear descriptions make it easy to identify common species. A month-by-month occurrence chart for Boulder County reveals when and where to look for your favorite Front Range butterflies.

Product Details

ISBN-13:	9780983702023
Publisher:	Boulder County Nature Association
Publication date:	08/01/2020
Pages:	140
Sales rank:	403,947
Product dimensions:	5.10(w) x 8.00(h) x 0.40(d)

About the Author

Janet Chu taught high school biology for 38 years and has conducted butterfly population studies on Boulder County open space for 15 years, documenting nearly 200 species. Since 1983 she has organized the annual Fourth of July butterfly count at the Cal-Wood Education Center in Boulder County.

Stephen Jones is author of The Last Prairie: A Sandhills Journal and co-author of The Shortgrass Prairie; the Peterson Field Guide to the North American Prairie; and Wild Boulder County: A Seasonal Guide to the Natural World. He works as a teacher, author, and wildlife consultant.

Table of Contents

Acknowledgments 6

Foreword 8

Preface to the Second Edition 10

Introduction 11

Species Accounts and Photographs 21

Parnassian and Swallowtails 22

Whites, Orangetip and Sulphurs 29

Coppers, Elfins and Hairstreaks 43

Blues 62

Monarch and Viceroy 73

Fritillaries 75

Checkerspots and Crescents 80

Commas, Tortoiseshells and Mourning Cloak 88

Admirals, Buckeye, Ladies and Emperor 94

Ringlet and Wood-Nymphs 101

Alpines and Arctics 104

Skippers 108

References 122

Glossary 125

Appendix 130

Boulder County Flight Times 130

Index 136