By SNOW W. E.   PICKARD EUGENE   in Annals of the Entomological Society of America

ISSN:1938-2901|50|3|306-311

Entomological Society of America‎(1957)‎

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By SNOW W. E.   PICKARD EUGENE   in Journal of Economic Entomology

ISSN:1938-291X|51|3|320-326

Entomological Society of America‎(1958)‎

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By SNOW W. E.   PICKARD EUGENE   in Annals of the Entomological Society of America

ISSN:1938-2901|52|3|236-239

Entomological Society of America‎(1959)‎

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By SNOW W. E.   PICKARD EUGENE   HAWKINS J. L.   in Journal of Economic Entomology

ISSN:1938-291X|53|4|619-621

Entomological Society of America‎(1960)‎

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