Seasonal Variation in the Distribution of Two Species of Symphyla Found in California

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The members of the class Symphyla are widely distributed throughout the world and have been encountered in population studies conducted by Morris (1922, 1927), Thompson (1924), Edwards (1929), Sawa (1930) and Williams (1931). The garden centipede, Scutigerella immaculata (Newp.), may occur in great numbers in many localities and has been reported as doing serious damage to growing crops in the United States, England, France, Portugal and the Hawaiian Islands. While working with this species in the delta region of the Sacramento River, the writer noted marked variations in populations. An investigation was therefore undertaken to determine the cause of these fluctuations.

Document Type: Research Article

Publication date: February 1, 1939

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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