ACKNOWLEDGMENTS


 This project was initiated in 1978 and has
survived through the encouragement and efforts
of many individuals. Premier among these is
Darlene Cannon who has persevered with ex-
cellence through the original typing and several
revisions. Our special thanks and respect are ex-
tended to her.
 The host list portion of the manuscript was
begun with the efforts of Pamela Zwerski and
continued by Elaine Sims, Joan Ortagus,
Elizabeth Manning, and Pamela Exon. We thank
them for their efforts and expertise. For the final
corrections we wish to thank Janet Temple and
Darlene Cannon.
 Our heartfelt respect and admiration are ex-
tended to G. W. "Wally" Dekle for his en-
couragement, smiling face, enthusiasm, and
legacy of excellence in scale insect identifica-
tions.
 Thanks are extended to Ernestine Ostanik,
Ladonia Fields, and Scott Yocom for their
technical help and expertise in slide preparation.
Technical graphics assistance was received from
Linda Writer. For expertise in taking many of
the photographs and photo reproductions we
thank Jane Windsor, the DPI photographer.
 Special thanks are due Ray Gill, Bill Gimpel,
Jim Howell, and Charles Ray for the use of their
original and previously published drawings.
 For encouragement, technical material,
photos, and the loan of slides, a special thanks is
extended to our former major professor and
friend, Dr. Michael Kosztarab, Professor of
Systematic Entomology, Virginia Polytechnic In-
stitute and State University, Blacksburg, VA.
 We are grateful for the support of ad-


ministrators of the Department of Agriculture
and Consumer Services, particularly the
Honorable Doyle E. Conner, Commissioner of
Agriculture and Consumer Services; H. L. Jones,
Director, retired; Dr. S. A. Alfieri, Jr., Director;
and H. A. Denmark, Chief of Entomology, of the
Division of Plant Industry.
 A considerable amount of assistance with
plant identifications and host names was re-
ceived from Dr. Kenneth Langdon. Carlos Ar-
taud reviewed the host list botanical names
several times. To them we extend our apprecia-
tion.
 For review of the manuscript and many
helpful suggestions, we extend our thanks to
Steve Nakahara, Research Entomologist, USDA,
Systematic Entomology Laboratory, Beltsville,
MD, and Raymond J. Gill, Systematic En-
tomologist, California Dept. of Food and
Agriculture, Division of Plant Industry,
Sacramento, CA.
 We wish to thank the Agriculture Products
Specialists, of the Division of Plant Industry, for
their diligent collections of most of the material,
and their cooperation when additional material
was requested.
 We thank our entomology colleagues at the
Division of Plant Industry, Drs. Frank Mead,
G. B. Edwards, Robert Woodruff, Lionel
Stange, John Heppner, and Howard Weems,
Jr. for their encouragement and many helpful
suggestions.
 Last, but not least, the senior author wishes
to thank his wife, Donna, for her encourage-
ment and dedication throughout this entire
study.