Beltsville and Washington, D.C., and indicates their area of expertise: 
D. M. Anderson—Scolytidae 
E. W. Baker—Acari 
S. W. T. Batra—Apidae 
R. W. Carlson—Ichneumonidae, Evaniidae 
D. C. Ferguson—Nymphalidae, Papilionidae, Hesperiidae, Sphingidae, Geo- 
metridae, Lymantriidae, Lasiocampidae, Mimallonidae, Pyralidae, Phycitinae 
R. H. Foote—Tephritidae 
R. J. Gagné—Cecidomyliidae, Asilidae, Muscidae, Calliphoridae, Sar- 
cophagidae, Mycetophagidae, Oestridae, Cuterebridae 
R. D. Gordon—Staphylinindae, Passalidae, Lucanidae, Scarabaeidae, 
Meliodae, Coccinellidae 
E. E. Grissell—Chalcidoidea 
A. B. Gurney, resident cooperating scientist—Orthoptera 
J. L. Herring—Hemiptera except Tingidae 
R. W. Hodges—Limacodidae, Megalopygidae, Epipaschiinae, Tortricidae, Cos- 
sidae, Agonexonidae, Gelechiodea, Oechoporidae, Blastobasidae, 
Choreutidae, Sesiidae, Yponomeutidae, Heliozelidae, Gracillariidae, 
Lyonetiidae, Psychidae, Nepticulidae, Incurvariidae, Hepialidae, 
Erioncraniidae 
J. M. Kingsolver—Trogositidae and Agri/us, Bruchidae, Buprestidae, Derodon- 
tidae, Colydiidae 
J. P. Kramer—Homoptera 
P. M. Marsh—Braconidae, Proctotrupoidea 
A. S. Menke—Cynipoidea, Chrysidoidea, Scolioidea, Vespoidea, and 
Sphecoidea 
D. R. Miller—Coccoidea 
C. W. Sabrosky, resident cooperating scientist—Tachinidae, Chloripidae 
D. R. Smith—Symphyta and Formicidae 
T. J. Spilman—Cupedidae, Silphidae, Elateridae, Cerambycidae, Cucujidae, 
Melandryidae, Oedemeridae, Lymexylidae, Mordellidae, Lyctidae, 
Bostrichidae, Ptinidae 
G. C. Steyskal, resident cooperating scientist—Chamaemyidae, Lonchaeidae 
M. P. Stoetzel—Aphididae, Adelgidae, Phylloxeridae, Aleyrodidae 
F. C. Thompson—Tabanidae, Hippoboscidae, Bibionidae 
E. L. Todd—Ctenuchidae, Arctiidae, Noctuidae, Notodontidae, 
R. E. White—Chrysomelidae, Cleridae, Anobiidae, Anthribidae, Breniidae 
D. R. Whitehead—Rhyncophora 
W. W. Wirth—Xylophagidae, Stratiomyidae, Rhagionidae 
For verification of scientific names, thanks are also due to S. Nakahara, U.S. 
Department of Agriculture, Animal and Plant Health Inspection Service—Thy- 
sanoptera; R. C. Froeschner and T. L. Erwin, Smithsonian Institution, Department 
of Entomology—Tingidae and Carabidae, respectively. 
Vil 
