. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. ORIGIN AND DISTRIBUTION. 15 road track and collected both larval and adult forms of the bean thrips upon this plant. Mr. A. C. Morgan, of this bureau, recently reported to the writer that he had collected the species on October 10, 1910, at Clarksville, Tenn. The fact that this insect is so widely distributed in all parts of California seems to point strongly to that State as its original home. This is also strongly supported by the fact that Moulton collected it from wild vetch in the Santa Cruz Mountains and th
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. ORIGIN AND DISTRIBUTION. 15 road track and collected both larval and adult forms of the bean thrips upon this plant. Mr. A. C. Morgan, of this bureau, recently reported to the writer that he had collected the species on October 10, 1910, at Clarksville, Tenn. The fact that this insect is so widely distributed in all parts of California seems to point strongly to that State as its original home. This is also strongly supported by the fact that Moulton collected it from wild vetch in the Santa Cruz Mountains and that the writer collected it in wild, uncultivated tracts in the mountains and canyons north of Los Angeles, 5 and 6 miles from cultivated crops. This point of view is further strengthened, because the au- thor has found this insect feeding on more than 20 native wild Fig. 8.—Map showing present known distribution of the bean thrips (Ifeliothrips fasciatus). (Original.) Mr. J. D. Hood, formerly of the office of the State entomologist of Illinois, recently informed the writer that he possessed specimens of this thrips that were collected by Prof. Lawrence Bruner at Lincoln, Nebr., February 11, 1899, and that he had collected this same species at Urbana, 111., in March, 1907. In both cases the thrips were taken on California oranges and had evidently been cur- ried across the country while hibernating in the navel end of the fruit. This is an excellent illustration of how this insect may be distributed through the agency of man. Although this insect is quite minute and has been little studied. at the present time it is known to occur through the entire State of California, in several places in Arizona, in Nevada, and in Idaho Dear the ^Vashington State line. It has also been found in one locality in Tennessee. Figure 8 lias been prepared (o show the definite localities where this insect has been Please note that these images are extracted from scanned
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