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Paul A. Opler ; illustrated by Vichai Malikul
Houghton Mifflin c1992 The Peterson field guide series 4
: pbk
Available at 1 libraries
Paul A. Opler, George O. Krizek
Johns Hopkins University Press c1984
Available at 2 libraries
Paul A. Opler and Donald R. Davis
Smithsonian Institution Press 1981 Smithsonian contributions to zoology no. 333
by Paul A. Opler
University of California Press 1974 University of California publications in entomology v. 75