Title: Bulletin Identifier: bulletin9295191012unit Year: 1904 (1900s) Authors: United States. Bureau of Entomology Subjects: Insects; Insect pests; Entomology; Insects; Insect pests; Entomology Publisher: Washington : G. P. O. Contributing Library: Smithsonian Libraries Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image: U. S. p. A., B. E. Bill. 95, Part V. C. F. I. I.. April 22. 1912. PAPERS ON CEREAL AND FORAGE INSECTS. THE FALSE WIREWORMS OF THE PACIFIC NORTHWEST. By James A. Hyslop, Agent and Expert, Cereal and Forage Insert Investigations. INTRODUCTION. Up to within the past five 3^ears, except for a few scattering notices, the species of Eleodes have been considered of only incidental, if of any, economic importance. The Tenebrionidff>, to which this genus belongs, are sometimes saprophagous, feeding on dead vegetable matter in the soil, and occasionally on dead animal tissue as well as on stored grain and other food products. Superficially the larvae resemble the true wireworms (elaterid larvae), and on account of this resemblance and the similarity of their

Text Appearing After Image: Fig. 22.—The false wireworm, Eleodes Ictcheri vandylcei: Adults in characteristic attitudes. Some- what enlarged. (Original.) depredations in the grain fiekls the two are often confused. On closer examination, however, Eleodes larvae can be easily recognized; the antennae are rather long and very conspicuously clavate, the body is not flattened, and the forelegs are long and stout. These larvae can move with great rapidity as compared with true wireworms The confusion of Eleodes with the true wireworms is unfortunate, as the preventive and remedial measures for the two pests are .quite distinct, what is efficient treatment in one case being quite useless in the other. HISTORICAL. Among the earliest references to the economic importance of these beetles in this country is a note by Prof. I^awrence Bruner/ in which the species Eleodes tricostata Say is recorded as attacking cabbage ' Bui. 2(i (old series), Div. F.nt., U. S. Dept. Agr., pp. 11-12,1892. 73

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