. The clover root-borer (Hylastinus obscurus Marsham). Roots (Botany) Diseases and pests; Hylastinus obscurus; Borers (Insects). around Chambersburg, but not disastrously so. It has not been reported at all from the vicinity of Washington, D. C. It is certainly not seriously injurious in the New England States at the present time, and Dr. Fletcher reports a similar state of affairs in Ontario, Canada, while in Ohio, West Virginia, Indiana, and southern Michigan it is becoming more and more destructive. DESCRIPTION OF THE INSECT. The fully developed insect is a small, dark-brown, hard-bodied be
. The clover root-borer (Hylastinus obscurus Marsham). Roots (Botany) Diseases and pests; Hylastinus obscurus; Borers (Insects). around Chambersburg, but not disastrously so. It has not been reported at all from the vicinity of Washington, D. C. It is certainly not seriously injurious in the New England States at the present time, and Dr. Fletcher reports a similar state of affairs in Ontario, Canada, while in Ohio, West Virginia, Indiana, and southern Michigan it is becoming more and more destructive. DESCRIPTION OF THE INSECT. The fully developed insect is a small, dark-brown, hard-bodied bee- tle, shown enlarged in figure 1. The larva, or grub, shown enlarged in figure 2, is about an eighth of an inch long, dingy white, with honey-yellow head and brown jaws. The pupa (fig. 3), is even smaller than the larva, also dingy white, with two minute spinous projections on the top of the head and two some- what larger ones at the anal extremity. The eggs are elliptical, white, and minute, yet large enough to be seen with the unaided Fig. I.—Hylastinus obscurus: Larva or grab—much en larged (original). LIFE Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Webster, F. M. (Francis Marion), 1849-1916; United States. Bureau of Entomology; United States. Dept. of Agriculture. Washington, D. C. : U. S. Dept. of Agriculture, Bureau of Entomology
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